Sync
authorAndy Seaborne <andy.seaborne@apache.org>
Sun, 22 Dec 2013 18:17:09 +0000
changeset 1674 a8102d4888c9
parent 1673 13d48570c8ca (current diff)
parent 1672 fa339f309ee2 (diff)
child 1675 4804c1c9c8b3
Sync
rdf-primer/abstract-graph-single.jpg
rdf-primer/example-context.json
rdf-primer/examples/mona-lisa.nt
rdf-primer/sample-graph.svg
rdf-schema/Overview.html
rdf-schema/diff-131114.html
rdf-schema/notes.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PR-drafts/PER-rdf-schema-20140109/Overview.html	Sun Dec 22 18:17:09 2013 +0000
@@ -0,0 +1,1641 @@
+<!DOCTYPE html>
+<html lang="en" typeof="bibo:Document w3p:PER" about="" property="dcterms:language" content="en" prefix="bibo: http://purl.org/ontology/bibo/ w3p: http://www.w3.org/2001/02pd/rec54#" xmlns="http://www.w3.org/1999/xhtml">
+<head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
+    <title>RDF Schema 1.1</title>
+    
+    
+    
+    <style type="text/css">
+      figure { text-align: center; }
+      table td, table th { border: 1px solid #ddd; padding: 0.2em 0.5em; }
+    </style>
+  <style>/*****************************************************************
+ * ReSpec 3 CSS
+ * Robin Berjon - http://berjon.com/
+ *****************************************************************/
+
+/* --- INLINES --- */
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+}
+
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+    color:  inherit;
+    border-bottom:  1px dotted #ccc;
+    text-decoration:    none;
+}
+
+a.bibref {
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+
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+
+code {
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+
+/* --- TOC --- */
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+}
+
+a .secno, a .figno {
+    color:  #000;
+}
+
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+    list-style: none outside none;
+}
+
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+    margin-top: 0.5em;
+    font-style:   italic;
+}
+
+/* --- TABLE --- */
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+    border-collapse:    collapse;
+    border-bottom:  3px solid #005a9c;
+}
+
+.simple th {
+    background: #005a9c;
+    color:  #fff;
+    padding:    3px 5px;
+    text-align: left;
+}
+
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+    background: inherit;
+    color:  inherit;
+    border-top: 1px solid #ddd;
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+    border-top: 1px solid #ddd;
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+
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+    margin-top: 0;
+}
+
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+    margin-bottom: 0;
+}
+
+.section dd {
+    margin-bottom:  1em;
+}
+
+.section dl.attrs dd, .section dl.eldef dd {
+    margin-bottom:  0;
+}
+</style><style>/* --- EXAMPLES --- */
+div.example-title {
+    min-width: 7.5em;
+    color: #b9ab2d;
+}
+div.example-title span {
+    text-transform: uppercase;   
+}
+aside.example, div.example, div.illegal-example {
+    padding: 0.5em;
+    margin: 1em 0;
+    position: relative;
+    clear: both;
+}
+div.illegal-example { color: red }
+div.illegal-example p { color: black }
+aside.example, div.example {
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+    border-color: #e0cb52;
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+
+aside.example div.example {
+    border-left-width: .1em;
+    border-color: #999;
+    background: #fff;
+}
+aside.example div.example div.example-title {
+    color: #999;
+}
+</style><style>/* --- ISSUES/NOTES --- */
+div.issue-title, div.note-title {
+    padding-right:  1em;
+    min-width: 7.5em;
+    color: #b9ab2d;
+}
+div.issue-title { color: #e05252; }
+div.note-title { color: #2b2; }
+div.issue-title span, div.note-title span {
+    text-transform: uppercase;
+}
+div.note, div.issue {
+    margin-top: 1em;
+    margin-bottom: 1em;
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+    padding: .5em;
+    border-left-width: .5em;
+    border-left-style: solid;
+}
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+    padding: 1em 1.2em 0.5em;
+    margin: 1em 0;
+    position: relative;
+    clear: both;
+}
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+
+.issue {
+    border-color: #e05252;
+    background: #fbe9e9;
+}
+.note {
+    border-color: #52e052;
+    background: #e9fbe9;
+}
+
+
+</style><link rel="stylesheet" href="https://www.w3.org/StyleSheets/TR/W3C-PER" />
+<!--[if lt IE 9]><script src='https://www.w3.org/2008/site/js/html5shiv.js'></script><![endif]-->
+</head>
+  <body class="h-entry" role="document" id="respecDocument"><div class="head" role="contentinfo" id="respecHeader">
+  <p>
+    
+      <a href="http://www.w3.org/"><img width="72" height="48" alt="W3C" src="https://www.w3.org/Icons/w3c_home" /></a>
+    
+  </p>
+  <h1 property="dcterms:title" id="title" class="title p-name">RDF Schema 1.1</h1>
+  
+  <h2 content="2014-01-08T23:00:00.000Z" datatype="xsd:dateTime" property="dcterms:issued" id="w3c-proposed-edited-recommendation-09-january-2014"><abbr title="World Wide Web Consortium">W3C</abbr> Proposed Edited Recommendation <time datetime="2014-01-09" class="dt-published">09 January 2014</time></h2>
+  <dl>
+    
+      <dt>This version:</dt>
+      <dd><a href="http://www.w3.org/TR/2014/PER-rdf-schema-20140109/" class="u-url">http://www.w3.org/TR/2014/PER-rdf-schema-20140109/</a></dd>
+      <dt>Latest published version:</dt>
+      <dd><a href="http://www.w3.org/TR/rdf-schema/">http://www.w3.org/TR/rdf-schema/</a></dd>
+    
+    
+      <dt>Latest editor's draft:</dt>
+      <dd><a href="https://dvcs.w3.org/hg/rdf/raw-file/default/rdf-schema/index.html">https://dvcs.w3.org/hg/rdf/raw-file/default/rdf-schema/index.html</a></dd>
+    
+    
+    
+    
+    
+      <dt>Previous version:</dt>
+      <dd><a href="http://www.w3.org/TR/2004/REC-rdf-schema-20040210/" rel="dcterms:replaces">http://www.w3.org/TR/2004/REC-rdf-schema-20040210/</a></dd>
+    
+    
+    <dt>Editors:</dt>
+    <dd inlist="" rel="bibo:editor" class="p-author h-card vcard"><span typeof="foaf:Person"><a href="http://danbri.org/" content="Dan Brickley" property="foaf:name" rel="foaf:homepage" class="u-url url p-name fn">Dan Brickley</a>, Google</span>
+</dd>
+<dd inlist="" rel="bibo:editor" class="p-author h-card vcard"><span typeof="foaf:Person"><span class="p-name fn" property="foaf:name">R.V. Guha</span>, Google</span>
+</dd>
+
+    
+    
+      
+        
+          <dt>Previous Editors:</dt>
+          
+             
+                
+                  <dd>
+                    
+                      Brian McBride
+                    
+                  </dd>
+                
+             
+          
+        
+      
+    
+  </dl>
+  
+  
+    <p>
+      
+        This document is also available in this non-normative format:
+      
+      <a href="diff.html" rel="alternate">diff w.r.t. 2004 Recommendation</a>
+    </p>
+  
+  
+  
+    
+      <p class="copyright">
+        <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> ©
+        2004-2014
+        
+        <a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup>
+        (<a href="http://www.csail.mit.edu/"><abbr title="Massachusetts Institute of Technology">MIT</abbr></a>,
+        <a href="http://www.ercim.eu/"><abbr title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>,
+        <a href="http://www.keio.ac.jp/">Keio</a>, <a href="http://ev.buaa.edu.cn/">Beihang</a>), 
+        
+        All Rights Reserved.
+        
+        <abbr title="World Wide Web Consortium">W3C</abbr> <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
+        <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and
+        
+          <a href="http://www.w3.org/Consortium/Legal/copyright-documents">document use</a>
+        
+        rules apply.
+      </p>
+    
+  
+  <hr />
+</div>
+      <section id="abstract" class="introductory" property="dcterms:abstract" datatype="" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h2 aria-level="1" role="heading" id="h2_abstract">Abstract</h2>
+        <p>The Resource Description Framework (RDF) is a language for
+          representing information about resources in the World Wide Web. RDF
+          Schema provides a data-modelling vocabulary for RDF data. RDF Schema
+          is an extension of the basic RDF vocabulary. </p>
+      </section><section class="introductory" id="sotd" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h2 aria-level="1" role="heading" id="h2_sotd">Status of This Document</h2>
+  
+    
+      
+        <p>
+          <em>This section describes the status of this document at the time of its publication.
+          Other documents may supersede this document. A list of current <abbr title="World Wide Web Consortium">W3C</abbr> publications and the
+          latest revision of this technical report can be found in the <a href="http://www.w3.org/TR/"><abbr title="World Wide Web Consortium">W3C</abbr> technical reports index</a> at
+          http://www.w3.org/TR/.</em>
+        </p>
+        
+      <p>This document is an edited version of the 2004 RDF
+        Schema Recommendation. The purpose of this revision is to make this
+        document available as part of the RDF 1.1 document set. Changes are
+        limited to revised references, terminology updates, and adaptations to
+        the introduction. The title of the document was changed from &quot;RDF
+        Vocabulary Description Language 1.0: RDF Schema&quot; to &quot;RDF Schema 1.1&quot;.
+        The technical content of the document is unchanged. Details of the changes
+        are listed in the <a href="#PER-changes">Changes</a> section.
+      </p><p>
+      The <abbr title="World Wide Web Consortium">W3C</abbr>
+      Membership and other interested parties are invited to review
+      the document and send comments to
+      <a rel="discussion" href="mailto:[email protected]">[email protected]</a> 
+      (<a href="mailto:[email protected]?subject=subscribe">subscribe</a>,
+      <a href="http://lists.w3.org/Archives/Public/public-rdf-comments/">archives</a>)
+      through 09 February 2014. Advisory Committee Representatives should consult their
+      <a href="https://www.w3.org/2002/09/wbs/myQuestionnaires">WBS questionnaires</a>. 
+      </p>
+      
+        <p>
+          This document was published by the <a href="http://www.w3.org/2011/rdf-wg/">RDF Working Group</a> as a Proposed Edited Recommendation.
+          
+            This document is intended to become a <abbr title="World Wide Web Consortium">W3C</abbr> Recommendation.
+          
+          
+            If you wish to make comments regarding this document, please send them to 
+            <a href="mailto:[email protected]">[email protected]</a> 
+            (<a href="mailto:[email protected]?subject=subscribe">subscribe</a>,
+            <a href="http://lists.w3.org/Archives/Public/public-rdf-comments/">archives</a>).
+          
+          
+          
+          
+            All comments are welcome.
+          
+        </p>
+        
+        
+          <p>
+            Publication as a Proposed Edited Recommendation does not imply endorsement by the <abbr title="World Wide Web Consortium">W3C</abbr>
+            Membership. This is a draft document and may be updated, replaced or obsoleted by other
+            documents at any time. It is inappropriate to cite this document as other than work in
+            progress.
+          </p>
+        
+        
+        <p>
+          
+            This document was produced by a group operating under the 
+            <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/" rel="w3p:patentRules" about="" id="sotd_patent">5 February 2004 <abbr title="World Wide Web Consortium">W3C</abbr> Patent
+            Policy</a>.
+          
+          
+          
+            
+              <abbr title="World Wide Web Consortium">W3C</abbr> maintains a <a rel="disclosure" href="http://www.w3.org/2004/01/pp-impl/46168/status">public list of any patent
+              disclosures</a> 
+            
+            made in connection with the deliverables of the group; that page also includes
+            instructions for disclosing a patent. An individual who has actual knowledge of a patent
+            which the individual believes contains
+            <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential
+            Claim(s)</a> must disclose the information in accordance with
+            <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section
+            6 of the <abbr title="World Wide Web Consortium">W3C</abbr> Patent Policy</a>.
+          
+          
+        </p>
+        
+      
+    
+  
+</section><section id="toc"><h2 class="introductory" aria-level="1" role="heading" id="h2_toc">Table of Contents</h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#ch_introduction" class="tocxref"><span class="secno">1. </span>Introduction</a></li><li class="tocline"><a href="#ch_classes" class="tocxref"><span class="secno">2. </span>Classes</a><ul class="toc"><li class="tocline"><a href="#ch_resource" class="tocxref"><span class="secno">2.1 </span>rdfs:Resource</a></li><li class="tocline"><a href="#ch_class" class="tocxref"><span class="secno">2.2 </span>rdfs:Class</a></li><li class="tocline"><a href="#ch_literal" class="tocxref"><span class="secno">2.3 </span>rdfs:Literal</a></li><li class="tocline"><a href="#ch_datatype" class="tocxref"><span class="secno">2.4 </span>rdfs:Datatype</a></li><li class="tocline"><a href="#ch_langstring" class="tocxref"><span class="secno">2.5 </span>rdf:langString</a></li><li class="tocline"><a href="#ch_html" class="tocxref"><span class="secno">2.6 </span>rdf:HTML</a></li><li class="tocline"><a href="#ch_xmlliteral" class="tocxref"><span class="secno">2.7 </span>rdf:XMLLiteral</a></li><li class="tocline"><a href="#ch_property" class="tocxref"><span class="secno">2.8 </span>rdf:Property</a></li></ul></li><li class="tocline"><a href="#ch_properties" class="tocxref"><span class="secno">3. </span>Properties</a><ul class="toc"><li class="tocline"><a href="#ch_range" class="tocxref"><span class="secno">3.1 </span>rdfs:range</a></li><li class="tocline"><a href="#ch_domain" class="tocxref"><span class="secno">3.2 </span>rdfs:domain</a></li><li class="tocline"><a href="#ch_type" class="tocxref"><span class="secno">3.3 </span>rdf:type</a></li><li class="tocline"><a href="#ch_subclassof" class="tocxref"><span class="secno">3.4 </span>rdfs:subClassOf</a></li><li class="tocline"><a href="#ch_subpropertyof" class="tocxref"><span class="secno">3.5 </span>rdfs:subPropertyOf</a></li><li class="tocline"><a href="#ch_label" class="tocxref"><span class="secno">3.6 </span>rdfs:label</a></li><li class="tocline"><a href="#ch_comment" class="tocxref"><span class="secno">3.7 </span>rdfs:comment</a></li></ul></li><li class="tocline"><a href="#ch_domainrange" class="tocxref"><span class="secno">4. </span>Using the Domain and Range vocabulary</a></li><li class="tocline"><a href="#ch_othervocab" class="tocxref"><span class="secno">5. </span>Other vocabulary</a><ul class="toc"><li class="tocline"><a href="#ch_containervocab" class="tocxref"><span class="secno">5.1 </span>Container Classes and Properties</a><ul class="toc"><li class="tocline"><a href="#ch_container" class="tocxref"><span class="secno">5.1.1 </span>rdfs:Container</a></li><li class="tocline"><a href="#ch_bag" class="tocxref"><span class="secno">5.1.2 </span>rdf:Bag</a></li><li class="tocline"><a href="#ch_seq" class="tocxref"><span class="secno">5.1.3 </span>rdf:Seq</a></li><li class="tocline"><a href="#ch_alt" class="tocxref"><span class="secno">5.1.4 </span>rdf:Alt</a></li><li class="tocline"><a href="#ch_containermembershipproperty" class="tocxref"><span class="secno">5.1.5 </span>rdfs:ContainerMembershipProperty</a></li><li class="tocline"><a href="#ch_member" class="tocxref"><span class="secno">5.1.6 </span>rdfs:member</a></li></ul></li><li class="tocline"><a href="#ch_collectionvocab" class="tocxref"><span class="secno">5.2 </span>RDF Collections</a><ul class="toc"><li class="tocline"><a href="#ch_list" class="tocxref"><span class="secno">5.2.1 </span>rdf:List</a></li><li class="tocline"><a href="#ch_first" class="tocxref"><span class="secno">5.2.2 </span>rdf:first</a></li><li class="tocline"><a href="#ch_rest" class="tocxref"><span class="secno">5.2.3 </span>rdf:rest</a></li><li class="tocline"><a href="#ch_nil" class="tocxref"><span class="secno">5.2.4 </span>rdf:nil</a></li></ul></li><li class="tocline"><a href="#ch_reificationvocab" class="tocxref"><span class="secno">5.3 </span>Reification Vocabulary</a><ul class="toc"><li class="tocline"><a href="#ch_statement" class="tocxref"><span class="secno">5.3.1 </span>rdf:Statement</a></li><li class="tocline"><a href="#ch_subject" class="tocxref"><span class="secno">5.3.2 </span>rdf:subject</a></li><li class="tocline"><a href="#ch_predicate" class="tocxref"><span class="secno">5.3.3 </span>rdf:predicate</a></li><li class="tocline"><a href="#ch_object" class="tocxref"><span class="secno">5.3.4 </span>rdf:object</a></li></ul></li><li class="tocline"><a href="#ch_utilvocab" class="tocxref"><span class="secno">5.4 </span>Utility Properties</a><ul class="toc"><li class="tocline"><a href="#ch_seealso" class="tocxref"><span class="secno">5.4.1 </span>rdfs:seeAlso</a></li><li class="tocline"><a href="#ch_isdefinedby" class="tocxref"><span class="secno">5.4.2 </span>rdfs:isDefinedBy</a></li><li class="tocline"><a href="#ch_value" class="tocxref"><span class="secno">5.4.3 </span>rdf:value</a></li></ul></li></ul></li><li class="tocline"><a href="#ch_summary" class="tocxref"><span class="secno">6. </span>RDF Schema summary</a><ul class="toc"><li class="tocline"><a href="#ch_sumclasses" class="tocxref"><span class="secno">6.1 </span>RDF classes</a></li><li class="tocline"><a href="#ch_sumproperties" class="tocxref"><span class="secno">6.2 </span>RDF properties</a></li></ul></li><li class="tocline"><a href="#ch_acknowledgements" class="tocxref"><span class="secno">A. </span>Acknowledgments</a></li><li class="tocline"><a href="#changes" class="tocxref"><span class="secno">B. </span>Change history</a><ul class="toc"><li class="tocline"><a href="#PER-changes" class="tocxref"><span class="secno">B.1 </span>Changes for Proposed Edited Recommendation in 2013</a></li><li class="tocline"><a href="#2004-changes" class="tocxref"><span class="secno">B.2 </span>Changes history of the 2004 Recommendation</a></li></ul></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">C. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">C.1 </span>Normative references</a></li><li class="tocline"><a href="#informative-references" class="tocxref"><span class="secno">C.2 </span>Informative references</a></li></ul></li></ul></section>
+      
+
+    <section id="ch_introduction" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_introduction"><span class="secno">1. </span>Introduction</h2>
+    
+      <p>The Resource Description Framework (RDF) is a general-purpose language
+        for
+        representing information in the Web.</p>
+      <p>RDF Schema provides a data-modelling vocabulary for RDF data.
+        It is complemented by several companion documents which
+        describe the basic concepts and abstract stntax of RDF
+        [<cite><a class="bibref" href="#bib-RDF11-CONCEPTS">RDF11-CONCEPTS</a></cite>], the formal semantics of RDF [<cite><a class="bibref" href="#bib-RDF11-MT">RDF11-MT</a></cite>], and
+        various concrete syntaxes for RDF, such as Turtle [<cite><a class="bibref" href="#bib-TURTLE">TURTLE</a></cite>],
+        TriG, [<cite><a class="bibref" href="#bib-TRIG">TRIG</a></cite>], and JSON-LD [<cite><a class="bibref" href="#bib-JSON-LD">JSON-LD</a></cite>]. The RDF Primer
+        [<cite><a class="bibref" href="#bib-RDF11-PRIMER">RDF11-PRIMER</a></cite>] provides an informal introduction and
+        examples of the use of the concepts specified in this document.</p>
+      <p>This document is intended to provide a clear specification of RDF
+        Schema to those who find the formal semantics
+        specification [<cite><a class="bibref" href="#bib-RDF11-MT">RDF11-MT</a></cite>]
+        daunting. Thus, this document duplicates material also specified in the
+        RDF
+        Semantics specification. Where there is disagreement between this
+        document
+        and the RDF Semantics specification, the RDF Semantics specification
+        should
+        be taken to be correct.</p>
+      
+<!--
+<p>RDF properties may be thought of as attributes of resources and inthis sense correspond to traditional attribute-value pairs. RDF
+properties also represent relationships between resources.</p> 
+<p>RDF however, provides no mechanisms for describing these properties, nordoes it provide any mechanisms for describing the relationships between these
+properties and other resources. That is the role of the RDF vocabularydescription language, RDF Schema. RDF Schema defines classes and properties
+that may be used to describe classes, properties and other resources.</p>
+<p>This document does not specify a vocabulary of descriptive properties suchas "author". Instead it specifies mechanisms that may be used to name and
+describe properties and the classes of resource they describe.</p>-->
+
+      <p>
+        RDF Schema is a <a href="http://www.w3.org/TR/rdf11-mt/#semantic-extensions-and-entailment-regimes">semantic
+          extension</a> of RDF. It provides mechanisms for describing groups of
+        related resources and the relationships between these resources. RDF
+        Schema is written in RDF
+        using the terms described in this document. These resources are used to
+        determine characteristics of other resources, such as the <a href="#ch_domain">domains</a>
+        and <a href="#ch_range">ranges</a> of properties.
+      </p>
+      <p>The RDF Schema class and property system is similar to the type
+        systems of object-oriented programming languages such as Java. RDF
+        Schema differs from many such systems in that instead of defining a
+        class in
+        terms of the properties its instances may have, RDF Schema
+        describes properties in terms of the classes of
+        resource to which they apply. This is the role of the <a href="#ch_domain">domain</a>
+        and <a href="#ch_range">range</a>
+        mechanisms described in this specification. For example, we could
+        define the <code>eg:author</code> property to have a domain of <code>eg:Document</code>
+        and a range of
+        <code>eg:Person</code>, whereas a classical object oriented system might
+        typically define a class <code>eg:Book</code> with an attribute called
+        <code>eg:author</code> of type <code>eg:Person</code>. Using the RDF
+        approach, it is easy for others to subsequently define additional
+        properties with a domain of eg:<code>Document</code> or a range of
+        <code>eg:Person</code>. This can be done without the need to re-define
+        the original description of
+        these classes. One benefit of the RDF property-centric approach is that
+        it
+        allows anyone to extend the description of existing resources, one of
+        the
+        architectural principles of the Web [<cite><a class="bibref" href="#bib-BERNERS-LEE98">BERNERS-LEE98</a></cite>].</p>
+      <p>This specification does not attempt to enumerate all the possible forms
+        of
+        representing the meaning of RDF
+        classes and properties. Instead, the RDF Schema strategy is
+        to acknowledge that there are many techniques through which the meaning
+        of
+        classes and properties can be described. Richer vocabulary or 'ontology'
+        languages such as OWL [<cite><a class="bibref" href="#bib-OWL2-OVERVIEW">OWL2-OVERVIEW</a></cite>], inference rule
+        languages and other formalisms (for example temporal logics) will each
+        contribute to our ability to capture meaningful generalizations about
+        data in
+        the Web.
+        
+<!--
+RDF vocabulary designers can create and deploy Semantic Webapplications using the RDF Schema facilities,
+while exploring richer languages that share thisgeneral approach.
+-->
+</p>
+      <p>The language defined in this specification consists of a collection of
+        RDF resources that can be used to describe other RDF resources in
+        application-specific RDF vocabularies. The core vocabulary is defined in
+        a namespace informally called <code>rdfs</code> here. That namespace is
+        identified by the IRI</p>
+      <blockquote>
+        <code>http://www.w3.org/2000/01/rdf-schema#</code>
+      </blockquote>
+      and is conventionally associated with the prefix <code>rdfs:</code>. This
+      specification also uses the prefix
+      <code>rdf:</code> to refer to the RDF namespace
+      <p></p>
+      <blockquote>
+        <code>http://www.w3.org/1999/02/22-rdf-syntax-ns#</code>
+      </blockquote>
+      <p>For convenience and readability, this specification uses an abbreviated
+        form to represent IRIs. A name of the form prefix:suffix should be
+        interpreted as a IRI consisting of the IRI associated
+        with the prefix concatenated with the suffix.</p>
+    </section>
+    <section id="ch_classes" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_classes"><span class="secno">2. </span>Classes</h2>
+      <p>Resources may be divided into groups called classes. The members of a
+        class are known as <em>instances</em> of the class. Classes are
+        themselves
+        resources. They are often identified by <a href="http://www.w3.org/TR/rdf11-concepts/#section-IRIs">IRIs</a>
+        and
+        may be described using RDF properties. The <code><a href="#ch_type">rdf:type</a></code>
+        property may be used to state that a
+        resource is an instance of a class.</p>
+      <p>RDF distinguishes between a class and the set of its instances.
+        Associated
+        with each class is a set, called the class extension of the class, which
+        is
+        the set of the instances of the class. Two classes may have the same set
+        of
+        instances but be different classes. For example, the tax office may
+        define
+        the class of people living at the same address as the editor of this
+        document. The Post Office may define the class of people whose address
+        has
+        the same zip code as the address of the author. It is possible for these
+        classes to have exactly the same instances, yet to have different
+        properties.
+        Only one of the classes has the property that it was defined by the tax
+        office, and only the other has the property that it was defined by the
+        Post
+        Office.</p>
+      <p>A class may be a member of its own class extension and may be an
+        instance of itself. </p>
+      <p>The group of resources that are RDF Schema classes is itself a class
+        called <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
+      <p id="def-subclass">
+        If a class C is a <em>subclass</em> of a class C', then all instances
+        of C will
+        also be instances of C'. The <a href="#ch_subclassof"><code>rdfs:subClassOf</code></a>
+        property may be used to state that one class is a subclass of another.
+        The term super-class is used as the inverse of subclass. If a class C'
+        is a super-class of a class C, then all instances of C are also
+        instances of C'.
+      </p>
+      <p>The RDF Concepts and Abstract Syntax [<cite><a class="bibref" href="#bib-RDF11-CONCEPTS">RDF11-CONCEPTS</a></cite>] specification
+        defines the RDF concept of an <a href="http://www.w3.org/TR/rdf11-concepts/#section-Datatypes">RDF
+          datatype</a>. All datatypes are classes. The instances of a class that
+        is a
+        datatype are the members of the value space of the datatype.</p>
+      <section id="ch_resource" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_resource"><span class="secno">2.1 </span>rdfs:Resource</h3>
+        <p>All things described by RDF are called <em>resources</em>, and are
+          instances of the class <code>rdfs:Resource</code>. This is the class
+          of
+          everything. All other classes are <a href="#def-subclass">subclasses</a>
+          of
+          this class. <code>rdfs:Resource</code> is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
+      </section>
+      <section id="ch_class" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_class"><span class="secno">2.2 </span>rdfs:Class</h3>
+        <p>This is the class of resources that are RDF classes.
+          <code>rdfs:Class</code> is an instance of <code>rdfs:Class.</code></p>
+      </section>
+      <section id="ch_literal" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_literal"><span class="secno">2.3 </span>rdfs:Literal</h3>
+        <p>The class <code>rdfs:Literal</code> is the class of <a href="http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal">literal</a>
+          values such as strings and integers. Property values such as textual
+          strings are examples of RDF literals.</p>
+        <p><code>rdfs:Literal</code> is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>.
+          rdfs:Literal is a <a href="#def-subclass">subclass</a> of <a href="#ch_resource">rdfs:Resource</a>.</p>
+      </section>
+      <section id="ch_datatype" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_datatype"><span class="secno">2.4 </span>rdfs:Datatype</h3>
+        <p><code>rdfs:Datatype</code> is the class of datatypes. All instances
+          of
+          <code>rdfs:Datatype</code> correspond to the <a href="http://www.w3.org/TR/rdf11-concepts/#section-Datatypes">RDF
+model
+            of a datatype</a> described in the RDF Concepts specification
+          [<cite><a class="bibref" href="#bib-RDF11-CONCEPTS">RDF11-CONCEPTS</a></cite>].
+          <code>rdfs:Datatype</code> is
+          both an instance of and a <a href="#def-subclass">subclass</a> of <a href="#ch_class"><code>rdfs:Class</code></a>. Each instance of <code>rdfs:Datatype</code>
+          is a <a href="#def-subclass">subclass</a> of rdfs:Literal.</p>
+      </section>
+      <section id="ch_langstring" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_langstring"><span class="secno">2.5 </span>rdf:langString</h3>
+        <p>The class <code>rdf:langString</code> is the class of <a href="http://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string">language-tagged
+            string values</a>. <code>rdf:langString</code> is an instance of
+          <code>rdfs:Datatype</code> and a <a href="#def-subclass">subclass</a>
+          of <a href="#ch_literal"><code>rdfs:Literal</code></a>.</p>
+      </section>
+      <section class="informative" id="ch_html" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_html"><span class="secno">2.6 </span>rdf:HTML</h3><p><em>This section is non-normative.</em></p>
+        <p>The class <code>rdf:HTML</code> is the class of <a href="http://www.w3.org/TR/rdf11-concepts/#section-html">HTML
+literal
+            values</a>. <code>rdf:HTML</code> is an instance of
+          <code>rdfs:Datatype</code> and a <a href="#def-subclass">subclass</a>
+          of <a href="#ch_literal"><code>rdfs:Literal</code></a>.</p>
+      </section>
+      <section class="informative" id="ch_xmlliteral" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_xmlliteral"><span class="secno">2.7 </span>rdf:XMLLiteral</h3><p><em>This section is non-normative.</em></p>
+        <p>The class <code>rdf:XMLLiteral</code> is the class of <a href="http://www.w3.org/TR/rdf11-concepts/#section-XMLLiteral">XML
+literal
+            values</a>. <code>rdf:XMLLiteral</code> is an instance of
+          <code>rdfs:Datatype</code> and a <a href="#def-subclass">subclass</a>
+          of <a href="#ch_literal"><code>rdfs:Literal</code></a>.</p>
+      </section>
+      <section id="ch_property" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_property"><span class="secno">2.8 </span>rdf:Property</h3>
+        <p><code>rdf:Property</code> is the class of RDF properties.
+          <code>rdf:Property</code> is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
+      </section>
+    </section>
+    <section id="ch_properties" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_properties"><span class="secno">3. </span>Properties</h2>
+      <p>The RDF Concepts and Abstract Syntax specification [<cite><a class="bibref" href="#bib-RDF11-CONCEPTS">RDF11-CONCEPTS</a></cite>]
+        describes the concept of an RDF property as a relation between subject
+        resources and object resources.</p>
+      <p id="def-subproperty">
+        This specification defines the concept of subproperty. The <a href="#ch_subclassof"><code>rdfs:subPropertyOf</code></a>
+        property may be used to state that one property is a subproperty of
+        another.
+        If a property P is a subproperty of property P', then all pairs of
+        resources which are related by P are also related by P'. The term
+        super-property is often
+        used as the inverse of subproperty. If a property P' is a super-property
+        of a property P, then all pairs of resources which are related by P are
+        also related by P'. This specification does not define a top
+        property that is the super-property of all properties.
+      </p>
+      <div class="note"><div class="note-title" aria-level="2" role="heading" id="h_note_1"><span>Note</span></div><p class="">
+        The basic facilities provided by <a href="#ch_domain"><code>rdfs:domain</code></a>
+        and <a href="#ch_range"><code>rdfs:range</code></a> do not provide any
+        direct way to indicate property restrictions that are local to a class.
+        Although it is possible to combine use <a href="#ch_domain"><code>rdfs:domain</code></a>
+        and <a href="#ch_range"><code>rdfs:range</code></a> with sub-property
+        hierarchies, direct support for such declarations are provided by richer
+        Web Ontology languages such as OWL [<cite><a class="bibref" href="#bib-OWL2-OVERVIEW">OWL2-OVERVIEW</a></cite>].
+      </p></div>
+      <section id="ch_range" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_range"><span class="secno">3.1 </span>rdfs:range</h3>
+        <p><code>rdfs:range</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+          that is used to state that
+          the values of a property are instances of one or more classes.</p>
+        <p>The triple</p>
+        <blockquote> <code>P rdfs:range C</code>
+        </blockquote>
+        <p>states that P is an instance of the class <a href="#ch_property"><code>rdf:Property</code></a>,
+          that C is an instance of the class <a href="#ch_class"><code>rdfs:Class</code></a>
+          and that the resources denoted by the objects of triples whose
+          predicate is P are instances of the class C.</p>
+        <p>Where P has more than one rdfs:range property, then the resources
+          denoted by the objects of triples with predicate P are instances of
+          all the classes stated by the <code>rdfs:range</code> properties.</p>
+        <p>The <code>rdfs:range</code> property can be applied to itself. The
+          rdfs:range of <code>rdfs:range</code> is the class <a href="#ch_class"><code>rdfs:Class</code></a>.
+          This states that any resource
+          that is the value of an <code>rdfs:range</code> property is an
+          instance of <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
+        <p>The <code>rdfs:range</code> property is applied to properties. This
+          can be represented in RDF using the <a href="#ch_domain"><code>rdfs:domain</code></a>
+          property. The <a href="#ch_domain"><code>rdfs:domain</code></a> of <code>rdfs:range</code>
+          is
+          the class <a href="#ch_property"><code>rdf:Property</code></a>. This
+          states
+          that any resource with an <code>rdfs:range</code> property is an
+          instance of
+          <code><a href="#ch_property">rdf:Property</a></code>.</p>
+      </section>
+      <section id="ch_domain" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_domain"><span class="secno">3.2 </span>rdfs:domain</h3>
+        <p><code>rdfs:domain</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+          that is used to state that
+          any resource that has a given property is an instance of one or more
+          classes.</p>
+        <p>A triple of the form:</p>
+        <blockquote> <code>P rdfs:domain C</code>
+        </blockquote>
+        <p>states that P is an instance of the class <code><a href="#ch_property">rdf:Property</a></code>,
+          that C is a instance of the class <code><a href="#ch_class">rdfs:Class</a></code>
+          and that the resources denoted by the subjects of triples whose
+          predicate is P are instances of the class C.</p>
+        <p>Where a property P has more than one rdfs:domain property, then the
+          resources denoted by subjects of triples with predicate P are
+          instances of all the classes stated by the <code>rdfs:domain</code>
+          properties.</p>
+        <p>The <code>rdfs:domain</code> property may be applied to itself. The
+          rdfs:domain of <code>rdfs:domain</code> is the class <a href="#ch_property"><code>rdf:Property</code></a>.
+          This states that any
+          resource with an <code>rdfs:domain</code> property is an instance of
+          <code><a href="#ch_property">rdf:Property</a></code>.</p>
+        <p>The <a href="#ch_range"><code>rdfs:range</code></a> of
+          <code>rdfs:domain</code> is the class <code><a href="#ch_class">rdfs:Class</a></code>.
+          This states that any resource that is the value of an <code>rdfs:domain</code>
+          property is an
+          instance of <code><a href="#ch_class">rdfs:Class</a></code>.</p>
+      </section>
+      <section id="ch_type" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_type"><span class="secno">3.3 </span>rdf:type</h3>
+        <p><code>rdf:type</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+          that is used to
+          state that a resource is an instance of a class.</p>
+        <p>A triple of the form:</p>
+        <blockquote> <code>R rdf:type C</code>
+        </blockquote>
+        <p>states that C is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>
+          and R is an instance of C.</p>
+        <p>The <code><a href="#ch_domain">rdfs:domain</a></code> of
+          <code>rdf:type</code> is <a href="#ch_resource">rdfs:Resource</a>.
+          The <a href="#ch_range"><code>rdfs:range</code></a> of rdf:type is <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
+      </section>
+      <section id="ch_subclassof" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_subclassof"><span class="secno">3.4 </span>rdfs:subClassOf</h3>
+        <p>The property <code>rdfs:subClassOf</code> is an instance of <code><a href="#ch_property">rdf:Property</a></code> that is used to state
+          that all the instances of one class are instances of another.</p>
+        <p>A triple of the form:</p>
+        <blockquote> <code>C1 rdfs:subClassOf C2</code>
+        </blockquote>
+        <p>states that C1 is an instance of <code><a href="#ch_class">rdfs:Class</a></code>,
+          C2 is an instance of <code><a href="#ch_class">rdfs:Class</a></code>
+          and C1 is a <a href="#def-subclass">subclass</a> of C2. The <code>rdfs:subClassOf</code>
+          property is transitive.</p>
+        <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+          <code>rdfs:subClassOf</code> is <code><a href="#ch_class">rdfs:Class</a></code>.
+          The <a href="#ch_range"><code>rdfs:range</code></a> of <code>rdfs:subClassOf</code>
+          is <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
+      </section>
+      <section id="ch_subpropertyof" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_subpropertyof"><span class="secno">3.5 </span>rdfs:subPropertyOf</h3>
+        <p>The property <code>rdfs:subPropertyOf</code> is an instance of <code><a href="#ch_property">rdf:Property</a></code> that is used to state
+          that all resources related by one property are also related by
+          another.</p>
+        <p>A triple of the form:</p>
+        <blockquote> <code>P1 rdfs:subPropertyOf P2</code>
+        </blockquote>
+        <p>states that P1 is an instance of <code><a href="#ch_property">rdf:Property</a></code>,
+          P2 is an instance of <code><a href="#ch_property">rdf:Property</a></code>
+          and P1 is a <a href="#def-subproperty">subproperty</a> of P2. The
+          <code>rdfs:subPropertyOf</code> property is transitive.</p>
+        <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+          <code>rdfs:subPropertyOf</code> is <code><a href="#ch_property">rdf:Property</a></code>.
+          The <a href="#ch_range"><code>rdfs:range</code></a> of
+          rdfs:subPropertyOf is <a href="#ch_property"><code>rdf:Property</code></a>.</p>
+      </section>
+      <section id="ch_label" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_label"><span class="secno">3.6 </span>rdfs:label</h3>
+        <p><code>rdfs:label</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+          that may be used to provide a human-readable version of a resource's
+          name.</p>
+        <p>A triple of the form:</p>
+        <blockquote> <code>R rdfs:label L</code>
+        </blockquote>
+        <p>states that L is a human readable label for R.</p>
+        <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+          <code>rdfs:label</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+          The <a href="#ch_range"><code>rdfs:range</code></a> of rdfs:label is
+          <a href="#ch_literal"><code>rdfs:Literal</code></a>.</p>
+        <p>Multilingual labels are supported using the <a href="http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal">language
+            tagging</a> facility of RDF literals.</p>
+      </section>
+      <section id="ch_comment" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_comment"><span class="secno">3.7 </span>rdfs:comment</h3>
+        <p><code>rdfs:comment</code> is an instance of <code><a href="#ch_property">rdf:Property</a></code>
+          that may be used to provide a human-readable description of a
+          resource.</p>
+        <p>A triple of the form:</p>
+        <blockquote> <code>R rdfs:comment L</code>
+        </blockquote>
+        <p>states that L is a human readable description of R.</p>
+        <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+          <code>rdfs:comment</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+          The <a href="#ch_range"><code>rdfs:range</code></a> of rdfs:comment
+          is <a href="#ch_literal"><code>rdfs:Literal</code></a>.</p>
+        <p>A textual comment helps clarify the meaning of RDF classes and
+          properties.
+          Such in-line documentation complements the use of both formal
+          techniques
+          (Ontology and rule languages) and informal (prose documentation,
+          examples,
+          test cases). A variety of documentation forms can be combined to
+          indicate the
+          intended meaning of the classes and properties described in an RDF
+          vocabulary. Since RDF vocabularies are expressed as RDF graphs,
+          vocabularies
+          defined in other namespaces may be used to provide richer
+          documentation.</p>
+        <p>Multilingual documentation is supported through use of the <a href="http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal">language
+            tagging</a> facility of RDF literals.</p>
+      </section>
+    </section>
+    <section id="ch_domainrange" class="informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_domainrange"><span class="secno">4. </span>Using the Domain and Range vocabulary</h2><p><em>This section is non-normative.</em></p>
+      <p>This specification introduces an RDF vocabulary for describing the
+        meaningful use of properties and classes in RDF data. For example, an
+        RDF
+        vocabulary might describe limitations on the types of values that are
+        appropriate for some property, or on the classes to which it makes sense
+        to
+        ascribe such properties.</p>
+      <p>RDF Schema provides a mechanism for describing this information, but
+        does not say whether or how an application should use it. For example,
+        while an RDF vocabulary can assert that an <code>author</code> property
+        is used to
+        indicate resources that are instances of the class <code>Person</code>,
+        it
+        does not say whether or how an application should act in processing that
+        range information. Different applications will use this information in
+        different ways. For example, data checking tools might use this to help
+        discover errors in some data set, an interactive editor might suggest
+        appropriate values, and a reasoning application might use it to infer
+        additional information from instance data.</p>
+      <p>RDF vocabularies can describe relationships between vocabulary items
+        from
+        multiple independently developed vocabularies. Since IRIs are used
+        to identify classes and properties on the Web, it is possible to create
+        new
+        properties that have a <code>domain</code> or <code>range</code> whose
+        value
+        is a class defined in another namespace.</p>
+    </section>
+    <section id="ch_othervocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_othervocab"><span class="secno">5. </span>Other vocabulary</h2>
+      <p>Additional classes and properties, including constructs for
+        representing
+        containers and RDF statements, and for deploying RDF vocabulary
+        descriptions
+        in the World Wide Web, are defined in this section.</p>
+      <section class="informative" id="ch_containervocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_containervocab"><span class="secno">5.1 </span>Container Classes and Properties</h3><p><em>This section is non-normative.</em></p>
+        <p>RDF containers are resources that are used to represent collections.
+          The same resource may appear in a container more than
+          once. Unlike containment in the physical world, a container may be
+          contained in itself.</p>
+        <p>Three different kinds of container are defined. Whilst the formal
+          semantics [<cite><a class="bibref" href="#bib-RDF11-MT">RDF11-MT</a></cite>] of all three classes of container are
+          identical,
+          different classes may be used to indicate informally further
+          information. An rdf:Bag is used to indicate that the container is
+          intended to be unordered. An rdf:Seq is used to indicate that the
+          order indicated by the numerical order of the <a href="#ch_containermembershipproperty">container
+            membership properties</a>
+          of the container is intended to be significant. An rdf:Alt container
+          is used
+          to indicate that typical processing of the container will be to select
+          one of
+          the members.</p>
+        <p>Just as a hen house may have the property that it is made of wood,
+          that
+          does not mean that all the hens it contains are made of wood, a
+          property of a
+          container is not necessarily a property of all of its members.</p>
+        <p>RDF containers are defined by the following classes and properties.</p>
+        <section id="ch_container" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_container"><span class="secno">5.1.1 </span>rdfs:Container</h4>
+          <p>The <code>rdfs:Container</code> class is a super-class of the RDF
+            Container classes, i.e. <code><a href="#ch_bag">rdf:Bag</a></code>,
+            <code><a href="#ch_seq">rdf:Seq</a></code>, <code><a href="#ch_alt">rdf:Alt</a></code>.</p>
+        </section>
+        <section id="ch_bag" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_bag"><span class="secno">5.1.2 </span>rdf:Bag</h4>
+          <p>The <code>rdf:Bag</code> class is the class of RDF 'Bag'
+            containers. It is
+            a <a href="#def-subclass">subclass</a> of <code><a href="#ch_container">rdfs:Container</a></code>.
+            Whilst formally it is no
+            different from an <code><a href="#ch_seq">rdf:Seq</a></code> or an
+            <code><a href="#ch_alt">rdf:Alt</a></code>, the <code>rdf:Bag</code>
+            class is used
+            conventionally to indicate to a human reader that the container is
+            intended
+            to be unordered.</p>
+        </section>
+        <section id="ch_seq" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_seq"><span class="secno">5.1.3 </span>rdf:Seq</h4>
+          <p>The <code>rdf:Seq</code> class is the class of RDF 'Sequence'
+            containers.
+            It is a <a href="#def-subclass">subclass</a> of <code><a href="#ch_container">rdfs:Container</a></code>.
+            Whilst formally it is no
+            different from an <code><a href="#ch_bag">rdf:Bag</a></code> or an
+            <code><a href="#ch_alt">rdf:Alt</a></code>, the <code>rdf:Seq</code>
+            class is used
+            conventionally to indicate to a human reader that the numerical
+            ordering of
+            the <a href="#ch_containermembershipproperty">container membership
+              properties</a> of the container is intended to be significant.</p>
+        </section>
+        <section id="ch_alt" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_alt"><span class="secno">5.1.4 </span>rdf:Alt</h4>
+          <p>The <code>rdf:Alt</code> class is the class of RDF 'Alternative'
+            containers. It is a <a href="#def-subclass">subclass</a> of <code><a href="#ch_container">rdfs:Container</a></code>. Whilst formally
+            it is no
+            different from an <code><a href="#ch_seq">rdf:Seq</a></code> or an
+            <code><a href="#ch_bag">rdf:Bag</a></code>, the <code>rdf:Alt</code>
+            class is used
+            conventionally to indicate to a human reader that typical processing
+            will be
+            to select one of the members of the container. The first member of
+            the
+            container, i.e. the value of the <code><a href="#ch_containermembershipproperty">rdf:_1</a></code>
+            property, is the
+            default choice.</p>
+        </section>
+        <section id="ch_containermembershipproperty" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_containermembershipproperty"><span class="secno">5.1.5 </span>rdfs:ContainerMembershipProperty</h4>
+          <p>The <code>rdfs:ContainerMembershipProperty</code> class has as
+            instances
+            the properties <code>rdf:_1, rdf:_2, rdf:_3 ...</code> that are
+            used to state
+            that a resource is a member of a container.
+            <code>rdfs:ContainerMembershipProperty</code> is a <a href="#def-subclass">subclass</a>
+            of <a href="#ch_property"><code>rdf:Property</code></a>. Each
+            instance of
+            <code>rdfs:ContainerMembershipProperty</code> is an <a href="#ch_subpropertyof"><code>rdfs:subPropertyOf</code></a>
+            the <code><a href="#ch_member">rdfs:member</a></code> property.</p>
+          <p>Given a container C, a triple of the form:</p>
+          <blockquote> <code>C rdf:_nnn O</code>
+          </blockquote>
+          <p>where <code>nnn</code> is the decimal representation of an integer
+            greater than 0 with
+            no leading zeros, states that O is a member of the container C.</p>
+          <p>Container membership properties may be applied to resources other
+            than containers.</p>
+        </section>
+        <section id="ch_member" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_member"><span class="secno">5.1.6 </span>rdfs:member</h4>
+          <p><code>rdfs:member</code> is an instance of <code><a href="#ch_property">rdf:Property</a></code>
+            that is a super-property of all
+            the container membership properties i.e. each container membership
+            property
+            has an <a href="#ch_subpropertyof"><code>rdfs:subPropertyOf</code></a>
+            relationship to the property <code>rdfs:member</code>.</p>
+          <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+            <code>rdfs:member</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+            The <a href="#ch_range"><code>rdfs:range</code></a> of <code>rdfs:member</code>
+            is
+            <code><a href="#ch_resource">rdfs:Resource</a></code>.</p>
+        </section>
+      </section>
+      <section class="informative" id="ch_collectionvocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_collectionvocab"><span class="secno">5.2 </span>RDF Collections</h3><p><em>This section is non-normative.</em></p>
+        <p>RDF containers are open in the sense that the core RDF specifications
+          define no mechanism to state that there are no more members. The RDF
+          Collection vocabulary of classes and properties can describe a closed
+          collection, i.e. one that can have no more members.</p>
+        <p>A collection is represented as a list of items, a representation that
+          will be familiar to those with experience of Lisp and similar
+          programming languages. There is a <a href="http://www.w3.org/TR/turtle/#collections">shorthand
+            notation</a> in the Turtle syntax specification for representing
+          collections.</p>
+        <div class="note"><div class="note-title" aria-level="3" role="heading" id="h_note_2"><span>Note</span></div><p class="">
+          RDFS does not require that there be only one first element of a
+          list-like structure, or even that a list-like structure have a first
+          element.
+        </p></div>
+        <section id="ch_list" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_list"><span class="secno">5.2.1 </span>rdf:List</h4>
+          <p><code>rdf:List</code> is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>
+            that can be used to build descriptions of lists and other list-like
+            structures.
+          </p>
+        </section>
+        <section id="ch_first" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_first"><span class="secno">5.2.2 </span>rdf:first</h4>
+          <p><code>rdf:first</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that can be used to build descriptions of lists and other list-like
+            structures.
+          </p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>L rdf:first O</code>
+          </blockquote>
+          <p>states that there is a first-element relationship between L and O.</p>
+          <p>
+            The <a href="#ch_domain"><code>rdfs:domain</code></a> of <code>rdf:first</code>
+            is <code><a href="#ch_list">rdf:List</a></code>. The <a href="#ch_range"><code>rdfs:range</code></a>
+            of <code>rdf:first</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+          </p>
+        </section>
+        <section id="ch_rest" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_rest"><span class="secno">5.2.3 </span>rdf:rest</h4>
+          <p><code>rdf:rest</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that can be used to build descriptions of lists and other list-like
+            structures.
+          </p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>L rdf:rest O</code>
+          </blockquote>
+          <p>states that there is a rest-of-list relationship between L and O.</p>
+          <p>
+            The <a href="#ch_domain"><code>rdfs:domain</code></a> of <code>rdf:rest</code>
+            is <code><a href="#ch_list">rdf:List</a></code>. The <a href="#ch_range"><code>rdfs:range</code></a>
+            of <code>rdf:rest</code> is <code><a href="#ch_list">rdf:List</a></code>.
+          </p>
+        </section>
+        <section id="ch_nil" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_nil"><span class="secno">5.2.4 </span>rdf:nil</h4>
+          <p>The resource <code>rdf:nil</code> is an instance of <code><a href="#ch_list">rdf:List</a></code>
+            that can be used to represent an empty list or other list-like
+            structure.</p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>L rdf:rest rdf:nil</code>
+          </blockquote>
+          <p>states that L is an instance of <code><a href="#ch_list">rdf:List</a></code>
+            that has one item; that item can be indicated using the <code><a href="#ch_first">rdf:first</a></code>
+            property.</p>
+        </section>
+      </section>
+      <section class="informative" id="ch_reificationvocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">&gt;
+        <h3 aria-level="2" role="heading" id="h3_ch_reificationvocab"><span class="secno">5.3 </span>Reification Vocabulary</h3><p><em>This section is non-normative.</em></p>
+        
+<!--
+<p>The 1999 RDF Model and Syntax Specification [[RDFMS]] defined a vocabulary for describing RDF statements without stating them. 
+The 2004 RDF specification did not assign a normative formal semantics to this vocabulary.  However, an intended meaning of 
+this vocabulary (which generally clarifies the intent of the RDFMS definition) is described here.
+An informal introduction to the reification vocabulary, with examples, may be found in the <a
+href="http://www.w3.org/TR/2004/REC-rdf-primer-20040210/#reification">RDF2004 primer</a>.
+</p>-->
+
+        <section id="ch_statement" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_statement"><span class="secno">5.3.1 </span>rdf:Statement</h4>
+          <p><code>rdf:Statement</code> is an instance of <code><a href="#ch_class">rdfs:Class.</a></code>
+            It is intended to represent the class of RDF statements. An RDF
+            statement is the statement made by a token of an RDF triple. The
+            subject of an RDF statement is the instance of <code><a href="#ch_resource">rdfs:Resource</a></code>
+            identified by the subject of the triple. The predicate of an RDF
+            statement is the instance of <code><a href="#ch_property">rdf:Property</a></code>
+            identified by the predicate of the triple. The object of an RDF
+            statement is the instance of <code><a href="#ch_resource">rdfs:Resource</a></code>
+            identified by the object of the triple.
+            <code>rdf:Statement</code> is in the domain of the properties <code><a href="#ch_predicate">rdf:predicate</a></code>, <code><a href="#ch_subject">rdf:subject</a></code>
+            and <code><a href="#ch_object">rdf:object</a></code>. Different
+            individual <code>rdf:Statement</code> instances may have the same
+            values for their <code><a href="#ch_predicate">rdf:predicate</a></code>,
+            <code><a href="#ch_subject">rdf:subject</a></code>
+            and <code><a href="#ch_object">rdf:object</a></code> properties.
+          </p>
+        </section>
+        <section id="ch_subject" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_subject"><span class="secno">5.3.2 </span>rdf:subject</h4>
+          <p><code>rdf:subject</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that is used to state the
+            subject of a statement.</p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>S rdf:subject R</code>
+          </blockquote>
+          <p>states that S is an instance of <code><a href="#ch_statement">rdf:Statement</a></code>
+            and that the subject of S is
+            R.</p>
+          <p class="schemacomment">The <a href="#ch_domain"><code>rdfs:domain</code></a>
+            of <code>rdf:subject</code> is
+            <code><a href="#ch_statement">rdf:Statement</a></code>. The <a href="#ch_range"><code>rdfs:range</code></a>
+            of <code>rdf:subject</code> is
+            <code><a href="#ch_resource">rdfs:Resource</a></code>.</p>
+        </section>
+        <section id="ch_predicate" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_predicate"><span class="secno">5.3.3 </span>rdf:predicate</h4>
+          <p>rdf:predicate is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that is used to state the
+            predicate of a statement.</p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>S rdf:predicate P</code>
+          </blockquote>
+          <p>states that S is an instance of <code><a href="#ch_statement">rdf:Statement</a></code>,
+            that P is an instance of
+            <code><a href="#ch_property">rdf:Property</a></code> and that the
+            predicate
+            of S is P.</p>
+          <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+            <code>rdf:predicate</code> is <code><a href="#ch_statement">rdf:Statement</a></code>
+            and the <a href="#ch_range"><code>rdfs:range</code></a> is <a href="#ch_resource"><code>rdfs:Resource</code></a>.</p>
+        </section>
+        <section id="ch_object" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_object"><span class="secno">5.3.4 </span>rdf:object</h4>
+          <p>rdf:object is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that is used to state the
+            object of a statement.</p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>S rdf:object O</code>
+          </blockquote>
+          <p>states that S is an instance of <code><a href="#ch_statement">rdf:Statement</a></code>
+            and that the object of S is
+            O.</p>
+          <p>The <a href="#ch_domain"><code>rdfs:domain</code></a> of
+            <code>rdf:object</code> is <code><a href="#ch_statement">rdf:Statement</a></code>.
+            The <a href="#ch_range"><code>rdfs:range</code></a> of <code>rdf:object</code>
+            is
+            <code><a href="#ch_resource">rdfs:Resource</a></code>.</p>
+        </section>
+      </section>
+      <section id="ch_utilvocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_utilvocab"><span class="secno">5.4 </span>Utility Properties</h3>
+        <p>The following utility classes and properties are defined in the RDF
+          core
+          namespaces.</p>
+        <section id="ch_seealso" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_seealso"><span class="secno">5.4.1 </span>rdfs:seeAlso</h4>
+          <p><code>rdfs:seeAlso</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that is used to indicate a
+            resource that might provide additional information about the subject
+            resource.</p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>S rdfs:seeAlso O</code>
+          </blockquote>
+          <p>states that the resource O may provide additional information about
+            S. It
+            may be possible to retrieve representations of O from the Web, but
+            this is
+            not required. When such representations may be retrieved, no
+            constraints are
+            placed on the format of those representations.</p>
+          <p>The <code><a href="#ch_domain">rdfs:domain</a></code> of
+            <code>rdfs:seeAlso</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+            The <code><a href="#ch_range">rdfs:range</a></code> of <code>rdfs:seeAlso</code>
+            is
+            <code><a href="#ch_resource">rdfs:Resource</a></code>.</p>
+        </section>
+        <section id="ch_isdefinedby" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_isdefinedby"><span class="secno">5.4.2 </span>rdfs:isDefinedBy</h4>
+          <p><code>rdfs:isDefinedBy</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that is used to indicate a
+            resource defining the subject resource. This property may be used to
+            indicate
+            an RDF vocabulary in which a resource is described.</p>
+          <p>A triple of the form:</p>
+          <blockquote> <code>S rdfs:isDefinedBy O</code>
+          </blockquote>
+          <p>states that the resource O defines S. It may be possible to
+            retrieve
+            representations of O from the Web, but this is not required. When
+            such
+            representations may be retrieved, no constraints are placed on the
+            format of
+            those representations. <code>rdfs:isDefinedBy</code> is a <a href="#def-subproperty">subproperty</a>
+            of <code><a href="#ch_seealso">rdfs:seeAlso</a></code>.</p>
+          <p>The <code><a href="#ch_domain">rdfs:domain</a></code> of
+            <code>rdfs:isDefinedBy</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+            The <code><a href="#ch_range">rdfs:range</a></code> of <code>rdfs:isDefinedBy</code>
+            is
+            <code><a href="#ch_resource">rdfs:Resource</a></code>.</p>
+        </section>
+        <section id="ch_value" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+          <h4 aria-level="3" role="heading" id="h4_ch_value"><span class="secno">5.4.3 </span>rdf:value</h4>
+          <p><code>rdf:value</code> is an instance of <a href="#ch_property"><code>rdf:Property</code></a>
+            that may be used in
+            describing structured values.</p>
+          <p>rdf:value has no meaning on its own. It is provided as a piece of
+            vocabulary that may be used in idioms such as illustrated
+            in example below:</p>
+          <div class="example"><div class="example-title"><span>Example 1</span></div><pre class="example">&lt;http://www.example.com/2002/04/products#item10245&gt;
+    &lt;http://www.example.org/terms/weight&gt; [
+       rdf:value 2.4 ;
+       &lt;http://www.example.org/terms/units&gt; &lt;http://www.example.org/units/kilograms&gt;
+       ] .</pre></div>
+            <p>Despite
+            the lack of formal specification of the meaning of this property,
+            there is
+            value in defining it to encourage the use of a common idiom in
+            examples of
+            this kind.</p>
+          <p>The <code><a href="#ch_domain">rdfs:domain</a></code> of
+            <code>rdf:value</code> is <code><a href="#ch_resource">rdfs:Resource</a></code>.
+            The <code><a href="#ch_range">rdfs:range</a></code> of <code>rdf:value</code>
+            is <code><a href="#ch_resource">rdfs:Resource</a></code>.</p>
+        </section>
+      </section>
+    </section>
+    <section id="ch_summary" class="informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_summary"><span class="secno">6. </span>RDF Schema summary</h2><p><em>This section is non-normative.</em></p>
+      <p>The tables in this section provide an overview of the RDF Schema vocabulary.</p>
+      
+<!-- of RDF, drawing together
+        vocabulary originally defined in the RDF Model and Syntax
+        specification [[RDFMS]] with
+        classes and properties that originate with RDF Schema.
+      -->
+
+      <section id="ch_sumclasses" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_sumclasses"><span class="secno">6.1 </span>RDF classes</h3>
+        <table border="1">
+          <tbody>
+            <tr>
+              <th>Class name</th>
+              <th>comment</th>
+            </tr>
+            <tr>
+              <td><a href="#ch_resource">rdfs:Resource</a></td>
+              <td>The class resource, everything.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_literal">rdfs:Literal</a></td>
+              <td>The class of literal values, e.g. textual strings and
+                integers.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_langstring">rdf:langString</a></td>
+              <td>The class of language-tagged string literal values.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_html">rdf:HTML</a></td>
+              <td>The class of HTML literal values.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_xmlliteral">rdf:XMLLiteral</a></td>
+              <td>The class of XML literal values.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_class">rdfs:Class</a></td>
+              <td>The class of classes.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_property">rdf:Property</a></td>
+              <td>The class of RDF properties.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_datatype">rdfs:Datatype</a></td>
+              <td>The class of RDF datatypes.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_statement">rdf:Statement</a></td>
+              <td>The class of RDF statements.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_bag">rdf:Bag</a></td>
+              <td>The class of unordered containers.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_seq">rdf:Seq</a></td>
+              <td>The class of ordered containers.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_alt">rdf:Alt</a></td>
+              <td>The class of containers of alternatives.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_container">rdfs:Container</a></td>
+              <td>The class of RDF containers.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_containermembershipproperty">rdfs:ContainerMembershipProperty</a></td>
+              <td>The class of container membership properties, rdf:_1, rdf:_2,
+                ..., all of which are sub-properties of 'member'.</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_list">rdf:List</a></td>
+              <td>The class of RDF Lists.</td>
+            </tr>
+          </tbody>
+        </table>
+      </section>
+      <section id="ch_sumproperties" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_ch_sumproperties"><span class="secno">6.2 </span>RDF properties</h3>
+        <table border="1">
+          <tbody>
+            <tr>
+              <th>Property name</th>
+              <th>comment</th>
+              <th>domain</th>
+              <th>range</th>
+            </tr> <tr>
+              <td><a href="#ch_type">rdf:type</a></td>
+              <td>The subject is an instance of a class.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Class</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_subclassof">rdfs:subClassOf</a></td>
+              <td>The subject is a subclass of a class.</td>
+              <td>rdfs:Class</td>
+              <td>rdfs:Class</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_subpropertyof">rdfs:subPropertyOf</a></td>
+              <td>The subject is a subproperty of a property.</td>
+              <td>rdf:Property</td>
+              <td>rdf:Property</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_domain">rdfs:domain</a></td>
+              <td>A domain of the subject property.</td>
+              <td>rdf:Property</td>
+              <td>rdfs:Class</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_range">rdfs:range</a></td>
+              <td>A range of the subject property.</td>
+              <td>rdf:Property</td>
+              <td>rdfs:Class</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_label">rdfs:label</a></td>
+              <td>A human-readable name for the subject.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Literal</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_comment">rdfs:comment</a></td>
+              <td>A description of the subject resource.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Literal</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_member">rdfs:member</a></td>
+              <td>A member of the subject resource.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_first">rdf:first</a></td>
+              <td>The first item in the subject RDF list.</td>
+              <td>rdf:List</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_rest">rdf:rest</a></td>
+              <td>The rest of the subject RDF list after the first item.</td>
+              <td>rdf:List</td>
+              <td>rdf:List</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_seealso">rdfs:seeAlso</a></td>
+              <td>Further information about the subject resource.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_isdefinedby">rdfs:isDefinedBy</a></td>
+              <td>The definition of the subject resource.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_value">rdf:value</a></td>
+              <td>Idiomatic property used for structured values.</td>
+              <td>rdfs:Resource</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_subject">rdf:subject</a></td>
+              <td>The subject of the subject RDF statement.</td>
+              <td>rdf:Statement</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_predicate">rdf:predicate</a></td>
+              <td>The predicate of the subject RDF statement.</td>
+              <td>rdf:Statement</td>
+              <td>rdfs:Resource</td>
+            </tr>
+            <tr>
+              <td><a href="#ch_object">rdf:object</a></td>
+              <td>The object of the subject RDF statement.</td>
+              <td>rdf:Statement</td>
+              <td>rdfs:Resource</td>
+            </tr>
+          </tbody>
+        </table>
+        <p>In addition to these classes and properties, RDF also uses properties
+          called <code>rdf:_1</code>, <code>rdf:_2</code>, <code>rdf:_3</code>...
+          etc.,
+          each of which is both a sub-property of <code>rdfs:member</code> and
+          an
+          instance of the class <code>rdfs:ContainerMembershipProperty</code>.
+          There is
+          also an instance of <code>rdf:List</code> called <code>rdf:nil</code>
+          that is
+          an empty <code>rdf:List</code>.</p>
+      </section>
+    </section>
+    <section id="ch_acknowledgements" class="appendix informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_ch_acknowledgements"><span class="secno">A. </span>Acknowledgments</h2><p><em>This section is non-normative.</em></p>
+      <p>The RDF Schema design was originally produced by the RDF Schema Working
+        Group (1997-2000). The current specification is largely an editorial
+        clarification of that design, and has benefited greatly from the hard
+        work of
+        the <a href="http://www.w3.org/2001/sw/RDFCore/">RDF Core Working Group</a>
+        <a href="http://www.w3.org/2001/sw/RDFCore/#Membership">members</a>, and
+        from
+        implementation feedback from many members of the <a href="http://www.w3.org/RDF/Interest/">RDF
+          Interest Group</a>. In
+        2013-2014 Guus Schreiber edited this document on behalf of the <a href="http://www.w3.org/2011/rdf-wg/">RDF
+          Working Group</a>
+        to bring it in line with the RDF 1.1 specifications. </p>
+      <p>David Singer of IBM was the chair of the original RDF Schema group
+        throughout most of the development of this specification; we thank David
+        for
+        his efforts and thank IBM for supporting him and us in this endeavor.
+        Particular thanks are also due to Andrew Layman for his editorial work
+        on
+        early versions of this specification.</p>
+      <p>The original RDF Schema Working Group membership included:</p>
+      <p>Nick Arnett (Verity), Dan Brickley (ILRT / University of Bristol),
+        Walter
+        Chang (Adobe), Sailesh Chutani (Oracle), Ron Daniel (DATAFUSION),
+        Charles
+        Frankston (Microsoft), Joe Lapp (webMethods Inc.), Patrick Gannon
+        (CommerceNet), RV Guha (Epinions, previously of Netscape
+        Communications), Tom
+        Hill (Apple Computer), Renato Iannella (DSTC), Sandeep Jain (Oracle),
+        Kevin
+        Jones, (InterMind), Emiko Kezuka (Digital Vision Laboratories), Ora
+        Lassila
+        (Nokia Research Center), Andrew Layman (Microsoft), John McCarthy
+        (Lawrence
+        Berkeley National Laboratory), Michael Mealling (Network Solutions),
+        Norbert
+        Mikula (DataChannel), Eric Miller (OCLC), Frank Olken (Lawrence Berkeley
+        National Laboratory), Sri Raghavan (Digital/Compaq), Lisa Rein
+        (webMethods
+        Inc.), Tsuyoshi Sakata (Digital Vision Laboratories), Leon Shklar
+        (Pencom Web
+        Works), David Singer (IBM), Wei (William) Song (SISU), Neel Sundaresan
+        (IBM),
+        Ralph Swick (<abbr title="World Wide Web Consortium">W3C</abbr>), Naohiko Uramoto (IBM), Charles Wicksteed (Reuters
+        Ltd.),
+        Misha Wolf (Reuters Ltd.)</p>
+    </section>
+    <section id="changes" class="appendix informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+      
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_changes"><span class="secno">B. </span>Change history</h2><p><em>This section is non-normative.</em></p>
+      <section id="PER-changes" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_PER-changes"><span class="secno">B.1 </span>Changes for Proposed Edited Recommendation in 2013</h3>
+        <ul>
+          <li>Conversion to ResPec, inclduing formatting of examples and notes.</li>
+          <li>Refereces and anchors to RDF 1.0 documents where appropriate
+            replaced by references and anchors to RDF 1.1 documents.</li>
+          <li>Replaced the term &quot;URI Reference&quot; with the term &quot;IRI&quot;. </li>
+          <li>Removed discussion about distinction between plain and typed
+            literals, as this distinction is absent in RDF 1.1 and has no
+            technical bearing on RDF Schema.</li>
+          <li>Fixed incorrect pointer to RDF Primer example 16 to example 21.</li>
+          <li>Removed the introductory paragraph of Sec. <a href="#ch_reificationvocab">&quot;Reification
+              Vocabulary&quot;</a>, as this discussion is not related to the
+            technical content and is irrelevant and confusing now. </li>
+          <li>Update of affiliation of the editors. </li>
+          <li>Added RDF WG to the Acknowledgements section.</li>
+          <li>Renamed the document from &quot;RDF Vocabulary Description Language
+            1.0: RDF Schema&quot; to &quot;RDF Schema 1.1&quot;, as the term Vocabulary
+            Description Language has led to confusion.</li>
+          <li>Three paragraphs of the Introduction were left out. These
+            paragraphs described the things that RDF Schema does not do and are
+            now much less relevant than in 2004. </li>
+          <li>Added the datatypes <code>rdf:langString</code> and <code>rdf:HTML</code>.
+          </li>
+          <li>Removed Appendix &quot;RDF Schema in RDF/XML&quot;. It was informative, but
+            now out of date, in terms of content and in terms of
+        syntax.</li>
+	  <li>Marked <code>rdf:HTML</code> and <code>rdf:XMLLiteral</code>
+        as non-normative.</li>
+	  <li>Removed references to 2004 Primer from Secs. 5.1, 5.2
+        and 5.4.3. In the latter case the example referred to was
+        moved into this document for readability purposes. </li> 
+        </ul>
+      </section>
+      <section id="2004-changes" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+        <h3 aria-level="2" role="heading" id="h3_2004-changes"><span class="secno">B.2 </span>Changes history of the 2004 Recommendation</h3>
+        <p>The following is an outline of the main changes made to the 2004
+          specification, latest first, since the Last Call Working Draft of <a href="http://www.w3.org/TR/2003/WD-rdf-schema-20030123/">23 January
+            2003</a>. See the <a href="http://www.w3.org/2001/sw/RDFCore/20030123-issues/#schema">Last
+            Call issue tracking document</a> for details of the specific issues
+          raised regarding this specification.
+        </p>
+        <ul>
+          <li>Amended Appendix A to note that the RDF/XML description of RDF and
+            RDFS terms is not directly published at the RDFS namespace, but
+            split between the 'rdf:' and 'rdfs:' namespace documents. Also
+            removed the pre-REC warning that the WG might choose to change the
+            namespace URI prior to Recommendation.</li>
+          <li>Amended rdfs:range specification for rdf:predicate for consistency
+            with the Semantics document (previously rdf:Property; now,
+            rdfs:Resource)</li>
+          <li>Removed reference to RDF mimetypes doc, as the IETF draft has
+            expired and is 404 missing on their site.</li>
+          <li>Reification vocabulary redescribed (<a href="http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2003Aug/0161.html">details</a>).</li>
+          <li>Reworded rdfs:comment for rdfs:member, changing &quot;container&quot; to
+            &quot;resource&quot;</li>
+          <li>Reworded lead-in to Appendix A per <a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003JulSep/0170.html">0170.html</a>.
+          </li>
+          <li>OWL references now go to OWL specs rather than WebOnt homepage.
+            Fixed minor typos per <a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003JanMar/0373.html">0373.html</a>)</li>
+          <li>Reworded rdf:nil to tone down the imperative style.</li>
+          <li>Added note to Properties section warning about over-use of
+            sub-property,
+            and referencing OWL, an editorial suggestion from Bijan Parsia. (<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003AprJun/0177.html">details</a>).
+          </li>
+          <li>Regarding <a href="http://www.w3.org/2001/sw/RDFCore/20030123-issues/#pfps-12">pfps-12</a>,
+            <a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003AprJun/0277.html">discussion</a>
+            led to rdf:first/rest/List/nil rewritten per Peter Patel-Schneider's
+            suggestion.</li>
+          <li>Change to description of subProperty and subClass, to match <a href="http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#change">changes
+              to RDF Semantics</a>. See
+            <a href="http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2003Jul/0161.html">discussion</a>
+            for details.</li>
+          <li>Edits <a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003AprJun/0099.html">closing</a>
+            'what is rdf schema' issue by clarifying that RDFS is a semantic
+            extension of RDF, as defined in the RDF Semantics document. This
+            closes rdfcore last call issue pfps-24.</li>
+        </ul>
+      </section>
+    </section>
+    
+<!--
+<section class="appendix informative" id="ch_appendix_rdfs">
+<h2>RDF Schema as RDF/XML</h2>
+<p class="issue">
+Update of the RDFS namespace document required!?</p>
+<p> 
+An RDFS description of the <a href="http://www.w3.org/TR/rdf11-mt/#rdf-interpretations">RDF vocabulary</a> and <a href="http://www.w3.org/TR/rdf11-mt/#rdfs-interpretations">RDFS vocabulary</a> is given here in RDF/XML syntax. 
+It includes statements describing RDF resources originally introduced bythe 1999 RDF Model and Syntax specification [[RDFMS]], as well as definitions for
+resources introduced in the RDF Schema vocabulary.</p>
+<p>This material is also available as <a href="rdfs-namespace">a separate
+RDF/XML document</a>. It does not necessarily match the contentpublished at the <a
+href="http://www.w3.org/1999/02/22-rdf-syntax-ns#">RDF namespaceURI</a> or the <a href="http://www.w3.org/2000/01/rdf-schema#">RDFS
+namespace URI</a>, which may evolve over time.</p>
+<table cellpadding="5" border="1" width="95%" summary="RDF Schema in RDF">
+  <tbody>    <tr>
+      <td>        <pre>
+&lt;rdf:RDF  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"  xmlns:owl="http://www.w3.org/2002/07/owl#"&gt;
+&lt;owl:Ontology rdf:about="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/2000/01/rdf-schema#Resource"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;Resource&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;The class resource, everything.&lt;/rdfs:comment&gt;&lt;/rdfs:Class&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#type"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;  &lt;rdfs:label&gt;type&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;The subject is an instance of a class.&lt;/rdfs:comment&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;&lt;/rdf:Property&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/2000/01/rdf-schema#Class"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;Class&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;The class of classes.&lt;/rdfs:comment&gt;  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdfs:Class&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#subClassOf"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;subClassOf&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The subject is a subclass of a class.&lt;/rdfs:comment&gt;
+  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/&gt;  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#subPropertyOf"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;subPropertyOf&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The subject is a subproperty of a property.&lt;/rdfs:comment&gt;
+  &lt;rdfs:range rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/&gt;  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;Property&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of RDF properties.&lt;/rdfs:comment&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;&lt;/rdfs:Class&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#comment"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;comment&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;A description of the subject resource.&lt;/rdfs:comment&gt;  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Literal"/&gt;&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#label"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;label&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;A human-readable name for the subject.&lt;/rdfs:comment&gt;  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Literal"/&gt;&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#domain"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;domain&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;A domain of the subject property.&lt;/rdfs:comment&gt; &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/&gt;&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#range"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;range&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;A range of the subject property.&lt;/rdfs:comment&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/&gt;&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#seeAlso"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:label&gt;seeAlso&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;Further information about the subject resource.&lt;/rdfs:comment&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+  &lt;rdfs:domain   rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#isDefinedBy"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;  &lt;rdfs:subPropertyOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#seeAlso"/&gt;
+  &lt;rdfs:label&gt;isDefinedBy&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The defininition of the subject resource.&lt;/rdfs:comment&gt;
+  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/2000/01/rdf-schema#Literal"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;Literal&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of literal values, eg. textual strings and integers.&lt;/rdfs:comment&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;&lt;/rdfs:Class&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;  &lt;rdfs:label&gt;Statement&lt;/rdfs:label&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;  &lt;rdfs:comment&gt;The class of RDF statements.&lt;/rdfs:comment&gt;
+&lt;/rdfs:Class&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#subject"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;subject&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The subject of the subject RDF statement.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;predicate&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The predicate of the subject RDF statement.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#object"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;object&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The object of the subject RDF statement.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/2000/01/rdf-schema#Container"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;Container&lt;/rdfs:label&gt;  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+  &lt;rdfs:comment&gt;The class of RDF containers.&lt;/rdfs:comment&gt;&lt;/rdfs:Class&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;  &lt;rdfs:label&gt;Bag&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;The class of unordered containers.&lt;/rdfs:comment&gt;  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Container"/&gt;
+&lt;/rdfs:Class&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;Seq&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of ordered containers.&lt;/rdfs:comment&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Container"/&gt;&lt;/rdfs:Class&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt"&gt;
+  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;  &lt;rdfs:label&gt;Alt&lt;/rdfs:label&gt;
+  &lt;rdfs:comment&gt;The class of containers of alternatives.&lt;/rdfs:comment&gt;  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Container"/&gt;
+&lt;/rdfs:Class&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/2000/01/rdf-schema#ContainerMembershipProperty"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;ContainerMembershipProperty&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of container membership properties, rdf:_1, rdf:_2, ...,
+                    all of which are sub-properties of 'member'.&lt;/rdfs:comment&gt;  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/&gt;
+&lt;/rdfs:Class&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/2000/01/rdf-schema#member"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;member&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;A member of the subject resource.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#value"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;value&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;Idiomatic property used for structured values.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#List"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;List&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of RDF Lists.&lt;/rdfs:comment&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;&lt;/rdfs:Class&gt;
+&lt;rdf:List rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;nil&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The empty list, with no items in it. If the rest of a list is nil then the list has no more items in it.&lt;/rdfs:comment&gt;
+&lt;/rdf:List&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#first"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;first&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The first item in the subject RDF list.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#List"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#rest"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;rest&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The rest of the subject RDF list after the first item.&lt;/rdfs:comment&gt;
+  &lt;rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#List"/&gt;  &lt;rdfs:range rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#List"/&gt;
+&lt;/rdf:Property&gt;
+&lt;rdfs:Class rdf:about="http://www.w3.org/2000/01/rdf-schema#Datatype"&gt;  &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/2000/01/rdf-schema#"/&gt;
+  &lt;rdfs:label&gt;Datatype&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of RDF datatypes.&lt;/rdfs:comment&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/&gt;&lt;/rdfs:Class&gt;
+	&lt;rdfs:Datatype rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral"&gt;
+  &lt;rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Literal"/&gt;   &lt;rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/&gt;
+  &lt;rdfs:label&gt;XMLLiteral&lt;/rdfs:label&gt;  &lt;rdfs:comment&gt;The class of XML literal values.&lt;/rdfs:comment&gt;
+&lt;/rdfs:Datatype&gt;
+&lt;rdf:Description rdf:about="http://www.w3.org/2000/01/rdf-schema#"&gt;  &lt;rdfs:seeAlso rdf:resource="http://www.w3.org/2000/01/rdf-schema-more"/&gt;
+&lt;/rdf:Description&gt;
+&lt;/rdf:RDF&gt;
+        </pre>      </td>
+    </tr>  </tbody>
+</table><hr />
+</section>
+-->
+
+  
+
+<section class="appendix" id="references" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<!--OddPage-->
+<h2 aria-level="1" role="heading" id="h2_references"><span class="secno">C. </span>References</h2><section id="normative-references" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_normative-references"><span class="secno">C.1 </span>Normative references</h3><dl class="bibliography" about=""><dt id="bib-JSON-LD">[JSON-LD]</dt><dd rel="dcterms:requires">Manu Sporny, Gregg Kellogg, Markus Lanthaler, Editors. <cite><a href="http://www.w3.org/TR/2013/PR-json-ld-20131105/">JSON-LD 1.0</a>.</cite> 5 November 2013. W3C Proposed Recommendation. URL: <a href="http://www.w3.org/TR/2013/PR-json-ld-20131105/">http://www.w3.org/TR/2013/PR-json-ld-20131105/</a>. The latest edition is available at <a href="http://www.w3.org/TR/json-ld/">http://www.w3.org/TR/json-ld/</a>
+</dd><dt id="bib-RDF11-CONCEPTS">[RDF11-CONCEPTS]</dt><dd rel="dcterms:requires">Richard Cyganiak, David Wood, Markus Lanthaler, Editors. <cite><a href="http://www.w3.org/TR/2014/PR-rdf11-concepts-20140109/">RDF 1.1 Concepts and Abstract Syntax.</a></cite> 9 January 2014. W3C Proposed Recommendation (work in progress). URL: <a href="http://www.w3.org/TR/2014/PR-rdf11-concepts-20140109/">http://www.w3.org/TR/2014/PR-rdf11-concepts-20140109/</a>. The latest edition is available at <a href="http://www.w3.org/TR/rdf11-concepts/">http://www.w3.org/TR/rdf11-concepts/</a>
+</dd><dt id="bib-RDF11-MT">[RDF11-MT]</dt><dd rel="dcterms:requires">Patrick J. Hayes, Peter F. Patel-Schneider, Editors. <cite><a href="http://www.w3.org/TR/2014/PR-rdf11-mt-20140109/">RDF 1.1 Semantics.</a></cite> 9 January 2014. W3C Proposed Recommendation (work in progress). URL: <a href="http://www.w3.org/TR/2014/PR-rdf11-mt-20140109/">http://www.w3.org/TR/2014/PR-rdf11-mt-20140109/</a>. The latest edition is available at <a href="http://www.w3.org/TR/rdf11-mt/">http://www.w3.org/TR/rdf11-mt/</a>
+</dd><dt id="bib-TRIG">[TRIG]</dt><dd rel="dcterms:requires">Gavin Carothers, Andy Seaborne, Editors. <cite><a href="http://www.w3.org/TR/2014/PR-trig-20140109/">TriG: RDF Dataset Language</a></cite>. 9 January 2014. W3C Proposed Recommendation (work in progress). URL: <a href="http://www.w3.org/TR/2014/PR-trig-20140109/">http://www.w3.org/TR/2014/PR-trig-20140109/</a>. The latest edition is available at <a href="http://www.w3.org/TR/trig/">http://www.w3.org/TR/trig/</a>
+</dd><dt id="bib-TURTLE">[TURTLE]</dt><dd rel="dcterms:requires">Eric Prud'hommeaux, Gavin Carothers, Editors. <cite><a href="http://www.w3.org/TR/2014/PR-turtle-20140109/">RDF 1.1 Turtle: Terse RDF Triple Language.</a></cite> 9 January 2014. W3C Proposed Recommendation (work in progress). URL: <a href="http://www.w3.org/TR/2014/PR-turtle-20140109/">http://www.w3.org/TR/2014/PR-turtle-20140109/</a>. The latest edition is available at <a href="http://www.w3.org/TR/turtle/">http://www.w3.org/TR/turtle/</a>
+</dd></dl></section><section id="informative-references" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_informative-references"><span class="secno">C.2 </span>Informative references</h3><dl class="bibliography" about=""><dt id="bib-BERNERS-LEE98">[BERNERS-LEE98]</dt><dd rel="dcterms:references">Tim Berners-Lee. <cite><a href="http://www.w3.org/DesignIssues/RDFnot.html">What the Semantic Web can represent</a></cite>. 1998. URI: <a href="http://www.w3.org/DesignIssues/RDFnot.html">http://www.w3.org/DesignIssues/RDFnot.html</a>.
+</dd><dt id="bib-OWL2-OVERVIEW">[OWL2-OVERVIEW]</dt><dd rel="dcterms:references">W3C OWL Working Group. <a href="http://www.w3.org/TR/owl2-overview/"><cite>OWL 2 Web Ontology Language Document Overview (Second Edition)</cite></a>. 11 December 2012. W3C Recommendation. URL: <a href="http://www.w3.org/TR/owl2-overview/">http://www.w3.org/TR/owl2-overview/</a>
+</dd><dt id="bib-RDF11-PRIMER">[RDF11-PRIMER]</dt><dd rel="dcterms:references">Guus Schreiber, Yves Raimond. <cite><a href="http://www.w3.org/TR/2013/WD-rdf11-primer-20131217/">RDF 1.1 Primer</a></cite>. W3C Working Draft  (work in progress), 17 December 2013. The latest version is available at <a href="http://www.w3.org/TR/rdf11-primer/">http://www.w3.org/TR/rdf11-primer/</a>.
+</dd></dl></section></section></body></html>
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+++ b/PR-drafts/PER-rdf-schema-20140109/diff.html	Sun Dec 22 18:17:09 2013 +0000
@@ -0,0 +1,10131 @@
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+<head>
+<meta http-equiv="content-type" content="text/html; charset=utf-8" />
+<title>RDF Schema 1.1</title>
+
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+<style type="text/css">
+/*<![CDATA[*/
+/*****************************************************************
+ * ReSpec 3 CSS
+ * Robin Berjon - http://berjon.com/
+ *****************************************************************/
+
+/* --- INLINES --- */
+em.rfc2119 { 
+    text-transform:     lowercase;
+    font-variant:       small-caps;
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+
+h1 acronym, h2 acronym, h3 acronym, h4 acronym, h5 acronym, h6 acronym, a acronym,
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+
+a.internalDFN {
+    color:  inherit;
+    border-bottom:  1px solid #99c;
+    text-decoration:    none;
+}
+
+a.externalDFN {
+    color:  inherit;
+    border-bottom:  1px dotted #ccc;
+    text-decoration:    none;
+}
+
+a.bibref {
+    text-decoration:    none;
+}
+
+cite .bibref {
+    font-style: normal;
+}
+
+code {
+    color:  #ff4500;
+}
+
+/* --- TOC --- */
+.toc a, .tof a {
+    text-decoration:    none;
+}
+
+a .secno, a .figno {
+    color:  #000;
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+
+ul.tof, ol.tof {
+    list-style: none outside none;
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+
+.caption {
+    margin-top: 0.5em;
+    font-style:   italic;
+}
+
+/* --- TABLE --- */
+table.simple {
+    border-spacing: 0;
+    border-collapse:    collapse;
+    border-bottom:  3px solid #005a9c;
+}
+
+.simple th {
+    background: #005a9c;
+    color:  #fff;
+    padding:    3px 5px;
+    text-align: left;
+}
+
+.simple th[scope="row"] {
+    background: inherit;
+    color:  inherit;
+    border-top: 1px solid #ddd;
+}
+
+.simple td {
+    padding:    3px 10px;
+    border-top: 1px solid #ddd;
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+
+.simple tr:nth-child(even) {
+    background: #f0f6ff;
+}
+
+/* --- DL --- */
+.section dd > p:first-child {
+    margin-top: 0;
+}
+
+.section dd > p:last-child {
+    margin-bottom: 0;
+}
+
+.section dd {
+    margin-bottom:  1em;
+}
+
+.section dl.attrs dd, .section dl.eldef dd {
+    margin-bottom:  0;
+}
+/*]]>*/
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+
+<style type="text/css">
+/*<![CDATA[*/
+/* --- EXAMPLES --- */
+div.example-title {
+    min-width: 7.5em;
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+div.example-title span {
+    text-transform: uppercase;   
+}
+aside.example, div.example, div.illegal-example {
+    padding: 0.5em;
+    margin: 1em 0;
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+    clear: both;
+}
+div.illegal-example { color: red }
+div.illegal-example p { color: black }
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+    border-left-width: .5em;
+    border-left-style: solid;
+    border-color: #e0cb52;
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+<style type="text/css">
+/*<![CDATA[*/
+/* --- ISSUES/NOTES --- */
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+    padding-right:  1em;
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+    color: #b9ab2d;
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+div.issue-title { color: #e05252; }
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+div.issue-title span, div.note-title span {
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+}
+div.note, div.issue {
+    margin-top: 1em;
+    margin-bottom: 1em;
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+<style type='text/css'>
+.diff-old-a {
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+<div class="head" role="contentinfo" id="respecHeader">
+<p>
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+<img width="72" height="48" alt="W3C" src="https://www.w3.org/Icons/w3c_home" />
+</a>
+</p>
+<del class="diff-old">RDF
+Vocabulary
+Description
+Language
+1.0:
+</del>
+<h1 property="dcterms:title" id="title" class="title p-name">
+RDF
+Schema
+<ins class="diff-new">1.1
+</ins>
+</h1>
+<h2 content="2014-01-08T23:00:00.000Z" datatype="xsd:dateTime" property="dcterms:issued" id="w3c-proposed-edited-recommendation-09-january-2014">
+<abbr title="World Wide Web Consortium">
+W3C
+</abbr>
+<ins class="diff-new">Proposed
+Edited
+</ins>
+Recommendation
+<del class="diff-old">10
+February
+2004
+</del>
+<time datetime="2014-01-09" class="dt-published">
+<ins class="diff-chg">09
+January
+2014
+</ins></time>
+</h2>
+<dl>
+<dt>
+This
+<del class="diff-old">Version:
+</del>
+<ins class="diff-chg">version:
+</ins>
+</dt>
+<dd>
+<del class="diff-old">http://www.w3.org/TR/2004/REC-rdf-schema-20040210/
+</del>
+<a href="http://www.w3.org/TR/2014/PER-rdf-schema-20140109/" class="u-url">
+<ins class="diff-chg">http://www.w3.org/TR/2014/PER-rdf-schema-20140109/
+</ins>
+</a>
+</dd>
+<dt>
+Latest
+<del class="diff-old">Version:
+</del>
+<ins class="diff-chg">published
+version:
+</ins>
+</dt>
+<dd>
+<a href="http://www.w3.org/TR/rdf-schema/">
+http://www.w3.org/TR/rdf-schema/
+</a>
+</dd>
+<dt>
+<ins class="diff-new">Latest
+editor's
+draft:
+</ins></dt><dd><a href="https://dvcs.w3.org/hg/rdf/raw-file/default/rdf-schema/index.html"><ins class="diff-new">
+https://dvcs.w3.org/hg/rdf/raw-file/default/rdf-schema/index.html
+</ins></a></dd><dt>
+Previous
+<del class="diff-old">Version:
+</del>
+<ins class="diff-chg">version:
+</ins>
+</dt>
+<dd>
+<del class="diff-old">http://www.w3.org/TR/2003/PR-rdf-schema-20031215/
+</del>
+<a href="http://www.w3.org/TR/2004/REC-rdf-schema-20040210/" rel="dcterms:replaces">
+<ins class="diff-chg">http://www.w3.org/TR/2004/REC-rdf-schema-20040210/
+</ins>
+</a>
+</dd>
+<dt>
+Editors:
+</dt>
+<dd inlist="" rel="bibo:editor" class="p-author h-card vcard">
+<span typeof="foaf:Person">
+<a href="http://danbri.org/" content="Dan Brickley" property="foaf:name" rel="foaf:homepage" class="u-url url p-name fn">
+Dan
+Brickley
+</a>,
+<del class="diff-old">W3C
+&lt;
[email protected]
+&gt;
+</del>
+<ins class="diff-chg">Google
+</ins></span>
+</dd>
+<dd inlist="" rel="bibo:editor" class="p-author h-card vcard">
+<span typeof="foaf:Person">
+<span class="p-name fn" property="foaf:name">
+R.V.
+<del class="diff-old">Guha,
+IBM
+&lt;
[email protected]
+&gt;
+</del>
+<ins class="diff-chg">Guha
+</ins></span>,<ins class="diff-chg">
+Google
+</ins></span>
+</dd>
+<dt>
+<del class="diff-old">Series
+editor:
+</del>
+<ins class="diff-chg">Previous
+Editors:
+</ins>
+</dt>
+<dd>
+Brian
+McBride
+<del class="diff-old">(Hewlett
+Packard
+Labs)
+&lt;
[email protected]
+&gt;
+</del>
+</dd>
+</dl>
+<del class="diff-old">Acknowledgments
+</del>
+<p>
+<del class="diff-old">Please
+refer
+to
+the
+errata
+for
+this
+document,
+which
+may
+include
+some
+normative
+corrections.
+See
+</del>
+<ins class="diff-chg">This
+document
+is
+</ins>
+also
+<del class="diff-old">translations
+.
+</del>
+<ins class="diff-chg">available
+in
+this
+non-normative
+format:
+</ins><a href="diff.html" rel="alternate"><ins class="diff-chg">
+diff
+w.r.t.
+2004
+Recommendation
+</ins></a>
+</p>
+<p class="copyright">
+<a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">
+Copyright
+</a>
+<del class="diff-old">&#xa9;
+2004
+</del>
+<ins class="diff-chg">©
+2004-2014
+</ins>
+<a href="http://www.w3.org/">
+<abbr title="World Wide Web Consortium">
+W3C
+</abbr>
+</a>
+<sup>
+<del class="diff-old">&#xae;
+</del>
+<ins class="diff-chg">®
+</ins>
+</sup>
+(
+<a href="http://www.csail.mit.edu/">
+<abbr title="Massachusetts Institute of Technology">
+MIT
+</abbr>
+</a>,
+<a href="http://www.ercim.eu/">
+<abbr title="European Research Consortium for Informatics and Mathematics">
+ERCIM
+</abbr>
+</a>,
+<a href="http://www.keio.ac.jp/">
+Keio
+</a>,
+<a href="http://ev.buaa.edu.cn/">
+<ins class="diff-new">Beihang
+</ins>
+</a>
+),
+All
+Rights
+Reserved.
+<abbr title="World Wide Web Consortium">
+W3C
+</abbr>
+<a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">
+liability
+</a>,
+<a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">
+trademark
+<del class="diff-old">,
+</del>
+</a>
+<ins class="diff-chg">and
+</ins>
+<a href="http://www.w3.org/Consortium/Legal/copyright-documents">
+document
+use
+</a>
+<del class="diff-old">and
+software
+licensing
+</del>
+rules
+apply.
+</p>
+<hr />
+</div>
+<section id="abstract" class="introductory" property="dcterms:abstract" datatype="" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_abstract">
+Abstract
+</h2>
+<p>
+The
+Resource
+Description
+Framework
+(RDF)
+is
+a
+<del class="diff-old">general-purpose
+</del>
+language
+for
+representing
+information
+<ins class="diff-new">about
+resources
+</ins>
+in
+the
+<ins class="diff-new">World
+Wide
+</ins>
+Web.
+<del class="diff-old">This
+specification
+describes
+how
+to
+use
+RDF
+to
+describe
+</del>
+RDF
+<del class="diff-old">vocabularies.
+This
+specification
+defines
+</del>
+<ins class="diff-chg">Schema
+provides
+</ins>
+a
+<ins class="diff-new">data-modelling
+</ins>
+vocabulary
+for
+<del class="diff-old">this
+purpose
+and
+defines
+other
+built-in
+</del>
+RDF
+<del class="diff-old">vocabulary
+initially
+specified
+in
+</del>
+<ins class="diff-chg">data.
+RDF
+Schema
+is
+an
+extension
+of
+</ins>
+the
+<ins class="diff-new">basic
+</ins>
+RDF
+<del class="diff-old">Model
+and
+Syntax
+Specification.
+</del>
+<ins class="diff-chg">vocabulary.
+</ins>
+</p>
+</section>
+<section class="introductory" id="sotd" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_sotd">
+Status
+of
+<del class="diff-old">this
+</del>
+<ins class="diff-chg">This
+</ins>
+Document
+</h2>
+<p>
+<em>
+This
+<ins class="diff-new">section
+describes
+the
+status
+of
+this
+</ins>
+document
+<del class="diff-old">has
+been
+reviewed
+by
+W3C
+Members
+and
+other
+interested
+parties,
+and
+it
+has
+been
+endorsed
+by
+</del>
+<ins class="diff-chg">at
+</ins>
+the
+<del class="diff-old">Director
+as
+a
+</del>
+<ins class="diff-chg">time
+of
+its
+publication.
+Other
+documents
+may
+supersede
+this
+document.
+A
+list
+of
+current
+</ins><abbr title="World Wide Web Consortium">
+W3C
+<del class="diff-old">Recommendation
+.
+W3C's
+role
+in
+making
+the
+Recommendation
+is
+to
+draw
+attention
+to
+the
+specification
+</del>
+</abbr>
+<ins class="diff-chg">publications
+</ins>
+and
+<del class="diff-old">to
+promote
+its
+widespread
+deployment.
+This
+enhances
+</del>
+the
+<del class="diff-old">functionality
+and
+interoperability
+</del>
+<ins class="diff-chg">latest
+revision
+</ins>
+of
+<ins class="diff-new">this
+technical
+report
+can
+be
+found
+in
+</ins>
+the
+<del class="diff-old">Web.
+</del>
+<a href="http://www.w3.org/TR/">
+<abbr title="World Wide Web Consortium">
+<ins class="diff-chg">W3C
+</ins></abbr><ins class="diff-chg">
+technical
+reports
+index
+</ins></a><ins class="diff-chg">
+at
+http://www.w3.org/TR/.
+</ins></em>
+</p>
+<p>
+This
+<del class="diff-old">is
+one
+</del>
+document
+<del class="diff-old">in
+a
+set
+</del>
+<ins class="diff-chg">is
+an
+edited
+version
+</ins>
+of
+<del class="diff-old">six
+(
+Primer
+,
+Concepts
+,
+Syntax
+,
+Semantics
+,
+Vocabulary
+,
+and
+Test
+Cases
+)
+intended
+to
+jointly
+replace
+</del>
+the
+<del class="diff-old">original
+Resource
+Description
+Framework
+specifications,
+RDF
+Model
+and
+Syntax
+(1999
+Recommendation)
+and
+</del>
+<ins class="diff-chg">2004
+</ins>
+RDF
+Schema
+<del class="diff-old">(2000
+Candidate
+Recommendation)
+.
+It
+has
+been
+developed
+by
+the
+RDF
+Core
+Working
+Group
+</del>
+<ins class="diff-chg">Recommendation.
+The
+purpose
+of
+this
+revision
+is
+to
+make
+this
+document
+available
+</ins>
+as
+part
+of
+the
+<del class="diff-old">W3C
+Semantic
+Web
+Activity
+(
+Activity
+Statement
+,
+Group
+Charter
+)
+for
+publication
+on
+10
+February
+2004.
+</del>
+<ins class="diff-chg">RDF
+1.1
+document
+set.
+</ins>
+Changes
+<ins class="diff-new">are
+limited
+</ins>
+to
+<del class="diff-old">this
+</del>
+<ins class="diff-chg">revised
+references,
+terminology
+updates,
+and
+adaptations
+to
+the
+introduction.
+The
+title
+of
+the
+</ins>
+document
+<del class="diff-old">since
+</del>
+<ins class="diff-chg">was
+changed
+from
+"RDF
+Vocabulary
+Description
+Language
+1.0:
+RDF
+Schema"
+to
+"RDF
+Schema
+1.1".
+The
+technical
+content
+of
+</ins>
+the
+<del class="diff-old">Proposed
+Recommendation
+Working
+Draft
+</del>
+<ins class="diff-chg">document
+is
+unchanged.
+Details
+of
+the
+changes
+</ins>
+are
+<del class="diff-old">detailed
+</del>
+<ins class="diff-chg">listed
+</ins>
+in
+the
+<del class="diff-old">change
+log
+.
+</del>
+<a href="#PER-changes">
+<ins class="diff-chg">Changes
+</ins></a><ins class="diff-chg">
+section.
+</ins>
+</p>
+<p>
+The
+<del class="diff-old">public
+is
+</del>
+<abbr title="World Wide Web Consortium">
+<ins class="diff-chg">W3C
+</ins></abbr><ins class="diff-chg">
+Membership
+and
+other
+interested
+parties
+are
+</ins>
+invited
+to
+<ins class="diff-new">review
+the
+document
+and
+</ins>
+send
+comments
+to
+<del class="diff-old">[email protected]
+</del>
+<a rel="discussion" href="mailto:[email protected]">
+<ins class="diff-chg">[email protected]
+</ins>
+</a>
+(
+<del class="diff-old">archive
+</del>
+<a href="mailto:[email protected]?subject=subscribe">
+<ins class="diff-chg">subscribe
+</ins></a>,<a href="http://lists.w3.org/Archives/Public/public-rdf-comments/"><ins class="diff-chg">
+archives
+</ins>
+</a>
+)
+<del class="diff-old">and
+</del>
+<ins class="diff-chg">through
+09
+February
+2014.
+Advisory
+Committee
+Representatives
+should
+consult
+their
+</ins><a href="https://www.w3.org/2002/09/wbs/myQuestionnaires"><ins class="diff-chg">
+WBS
+questionnaires
+</ins></a>.</p><p><ins class="diff-chg">
+This
+document
+was
+published
+by
+the
+</ins><a href="http://www.w3.org/2011/rdf-wg/"><ins class="diff-chg">
+RDF
+Working
+Group
+</ins></a><ins class="diff-chg">
+as
+a
+Proposed
+Edited
+Recommendation.
+This
+document
+is
+intended
+</ins>
+to
+<del class="diff-old">participate
+in
+general
+discussion
+of
+related
+technology
+on
[email protected]
+</del>
+<ins class="diff-chg">become
+a
+</ins><abbr title="World Wide Web Consortium"><ins class="diff-chg">
+W3C
+</ins></abbr><ins class="diff-chg">
+Recommendation.
+If
+you
+wish
+to
+make
+comments
+regarding
+this
+document,
+please
+send
+them
+to
+</ins><a href="mailto:[email protected]"><ins class="diff-chg">
[email protected]
+</ins>
+</a>
+(
+<del class="diff-old">archive
+</del>
+<a href="mailto:[email protected]?subject=subscribe">
+<ins class="diff-chg">subscribe
+</ins></a>,<a href="http://lists.w3.org/Archives/Public/public-rdf-comments/"><ins class="diff-chg">
+archives
+</ins>
+</a>
+).
+<ins class="diff-new">All
+comments
+are
+welcome.
+</ins>
+</p>
+<p>
+<del class="diff-old">A
+list
+of
+implementations
+</del>
+<ins class="diff-chg">Publication
+as
+a
+Proposed
+Edited
+Recommendation
+does
+not
+imply
+endorsement
+by
+the
+</ins><abbr title="World Wide Web Consortium"><ins class="diff-chg">
+W3C
+</ins></abbr><ins class="diff-chg">
+Membership.
+This
+</ins>
+is
+<del class="diff-old">available.
+</del>
+<ins class="diff-chg">a
+draft
+document
+and
+may
+be
+updated,
+replaced
+or
+obsoleted
+by
+other
+documents
+at
+any
+time.
+It
+is
+inappropriate
+to
+cite
+this
+document
+as
+other
+than
+work
+in
+progress.
+</ins>
+</p>
+<p>
+<del class="diff-old">The
+</del>
+<ins class="diff-chg">This
+document
+was
+produced
+by
+a
+group
+operating
+under
+the
+</ins><a href="http://www.w3.org/Consortium/Patent-Policy-20040205/" rel="w3p:patentRules" about="" id="sotd_patent"><ins class="diff-chg">
+5
+February
+2004
+</ins><abbr title="World Wide Web Consortium"><ins class="diff-chg">
+W3C
+</ins></abbr><ins class="diff-chg">
+Patent
+Policy
+</ins></a>.<abbr title="World Wide Web Consortium">
+W3C
+</abbr>
+maintains
+a
+<a rel="disclosure" href="http://www.w3.org/2004/01/pp-impl/46168/status">
+<ins class="diff-new">public
+</ins>
+list
+of
+any
+patent
+disclosures
+<del class="diff-old">related
+to
+this
+work
+.
+This
+section
+describes
+</del>
+</a>
+<ins class="diff-chg">made
+in
+connection
+with
+</ins>
+the
+<del class="diff-old">status
+</del>
+<ins class="diff-chg">deliverables
+</ins>
+of
+<del class="diff-old">this
+document
+at
+</del>
+the
+<del class="diff-old">time
+of
+its
+publication.
+Other
+documents
+may
+supersede
+this
+document.
+A
+list
+</del>
+<ins class="diff-chg">group;
+that
+page
+also
+includes
+instructions
+for
+disclosing
+a
+patent.
+An
+individual
+who
+has
+actual
+knowledge
+</ins>
+of
+<del class="diff-old">current
+W3C
+publications
+and
+</del>
+<ins class="diff-chg">a
+patent
+which
+</ins>
+the
+<del class="diff-old">latest
+revision
+of
+this
+technical
+report
+can
+be
+found
+</del>
+<ins class="diff-chg">individual
+believes
+contains
+</ins><a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential"><ins class="diff-chg">
+Essential
+Claim(s)
+</ins></a><ins class="diff-chg">
+must
+disclose
+the
+information
+</ins>
+in
+<ins class="diff-new">accordance
+with
+</ins><a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure"><ins class="diff-new">
+section
+6
+of
+</ins>
+the
+<abbr title="World Wide Web Consortium">
+W3C
+<del class="diff-old">technical
+reports
+index
+at
+http://www.w3.org/TR/.
+</del>
+</abbr>
+<ins class="diff-chg">Patent
+Policy
+</ins></a>.
+</p>
+</section>
+<section id="toc">
+<h2 class="introductory" aria-level="1" role="heading" id="h2_toc">
+<ins class="diff-chg">Table
+of
+</ins>
+Contents
+</h2>
+<ul class="toc" role="directory" id="respecContents">
+<li class="tocline">
+<a href="#ch_introduction" class="tocxref">
+<span class="secno">
+1.
+</span>
+Introduction
+</a>
+</li>
+<li class="tocline">
+<a href="#ch_classes" class="tocxref">
+<span class="secno">
+2.
+</span>
+Classes
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+<a href="#ch_resource" class="tocxref">
+<span class="secno">
+2.1
+</span>
+rdfs:Resource
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_class" class="tocxref">
+<span class="secno">
+2.2
+</span>
+rdfs:Class
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_literal" class="tocxref">
+<span class="secno">
+2.3
+</span>
+rdfs:Literal
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_datatype" class="tocxref">
+<span class="secno">
+2.4
+</span>
+rdfs:Datatype
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_langstring" class="tocxref">
+<span class="secno">
+2.5
+<del class="diff-old">rdf:XMLLiteral
+</del>
+</span>
+<ins class="diff-chg">rdf:langString
+</ins>
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_html" class="tocxref">
+<span class="secno">
+2.6
+</span>
+<ins class="diff-chg">rdf:HTML
+</ins></a></li><li class="tocline"><a href="#ch_xmlliteral" class="tocxref"><span class="secno"><ins class="diff-chg">
+2.7
+</ins></span><ins class="diff-chg">
+rdf:XMLLiteral
+</ins></a></li><li class="tocline"><a href="#ch_property" class="tocxref"><span class="secno"><ins class="diff-chg">
+2.8
+</ins></span>
+rdf:Property
+</a>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_properties" class="tocxref">
+<span class="secno">
+3.
+</span>
+Properties
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+<a href="#ch_range" class="tocxref">
+<span class="secno">
+3.1
+</span>
+rdfs:range
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_domain" class="tocxref">
+<span class="secno">
+3.2
+</span>
+rdfs:domain
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_type" class="tocxref">
+<span class="secno">
+3.3
+</span>
+rdf:type
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_subclassof" class="tocxref">
+<span class="secno">
+3.4
+</span>
+rdfs:subClassOf
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_subpropertyof" class="tocxref">
+<span class="secno">
+3.5
+</span>
+rdfs:subPropertyOf
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_label" class="tocxref">
+<span class="secno">
+3.6
+</span>
+rdfs:label
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_comment" class="tocxref">
+<span class="secno">
+3.7
+</span>
+rdfs:comment
+</a>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_domainrange" class="tocxref">
+<span class="secno">
+4.
+</span>
+Using
+the
+Domain
+and
+Range
+vocabulary
+<del class="diff-old">(Informative)
+</del>
+</a>
+</li>
+<li class="tocline">
+<a href="#ch_othervocab" class="tocxref">
+<span class="secno">
+5.
+</span>
+Other
+vocabulary
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+<a href="#ch_containervocab" class="tocxref">
+<span class="secno">
+5.1
+</span>
+Container
+Classes
+and
+Properties
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+<ul class="toc">
+<li class="tocline">
+<a href="#ch_container" class="tocxref">
+<span class="secno">
+5.1.1
+</span>
+rdfs:Container
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_bag" class="tocxref">
+<span class="secno">
+5.1.2
+</span>
+rdf:Bag
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_seq" class="tocxref">
+<span class="secno">
+5.1.3
+</span>
+rdf:Seq
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_alt" class="tocxref">
+<span class="secno">
+5.1.4
+</span>
+rdf:Alt
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_containermembershipproperty" class="tocxref">
+<span class="secno">
+5.1.5
+</span>
+rdfs:ContainerMembershipProperty
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_member" class="tocxref">
+<span class="secno">
+5.1.6
+</span>
+rdfs:member
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_collectionvocab" class="tocxref">
+<span class="secno">
+5.2
+</span>
+RDF
+Collections
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+<a href="#ch_list" class="tocxref">
+<span class="secno">
+5.2.1
+</span>
+rdf:List
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_first" class="tocxref">
+<span class="secno">
+5.2.2
+</span>
+rdf:first
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_rest" class="tocxref">
+<span class="secno">
+5.2.3
+</span>
+rdf:rest
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_nil" class="tocxref">
+<span class="secno">
+5.2.4
+</span>
+rdf:nil
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_reificationvocab" class="tocxref">
+<span class="secno">
+5.3
+</span>
+Reification
+Vocabulary
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+<a href="#ch_statement" class="tocxref">
+<span class="secno">
+5.3.1
+</span>
+rdf:Statement
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_subject" class="tocxref">
+<span class="secno">
+5.3.2
+</span>
+rdf:subject
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_predicate" class="tocxref">
+<span class="secno">
+5.3.3
+</span>
+rdf:predicate
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_object" class="tocxref">
+<span class="secno">
+5.3.4
+</span>
+rdf:object
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_utilvocab" class="tocxref">
+<span class="secno">
+5.4
+</span>
+Utility
+Properties
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+<a href="#ch_seealso" class="tocxref">
+<span class="secno">
+5.4.1
+</span>
+rdfs:seeAlso
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_isdefinedby" class="tocxref">
+<span class="secno">
+5.4.2
+</span>
+rdfs:isDefinedBy
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_value" class="tocxref">
+<span class="secno">
+5.4.3
+</span>
+rdf:value
+</a>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_summary" class="tocxref">
+<span class="secno">
+6.
+</span>
+RDF
+Schema
+summary
+<del class="diff-old">(Informative)
+</del>
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+<ul class="toc">
+<li class="tocline">
+<a href="#ch_sumclasses" class="tocxref">
+<span class="secno">
+6.1
+<del class="diff-old">Classes
+</del>
+</span>
+<ins class="diff-chg">RDF
+classes
+</ins>
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+</del>
+</li>
+<li class="tocline">
+<a href="#ch_sumproperties" class="tocxref">
+<span class="secno">
+6.2
+<del class="diff-old">Properties
+</del>
+</span>
+<ins class="diff-chg">RDF
+properties
+</ins>
+</a>
+<del class="diff-old">7.
+References
+</del>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#ch_acknowledgements" class="tocxref">
+<span class="secno">
+<ins class="diff-chg">A.
+</ins></span><ins class="diff-chg">
+Acknowledgments
+</ins>
+</a>
+<del class="diff-old">&nbsp;
+&nbsp;
+7.1
+Normative
+References
+</del>
+</li>
+<li class="tocline">
+<a href="#changes" class="tocxref">
+<span class="secno">
+<ins class="diff-chg">B.
+</ins></span><ins class="diff-chg">
+Change
+history
+</ins>
+</a>
+<ul class="toc">
+<li class="tocline">
+<del class="diff-old">&nbsp;
+&nbsp;
+7.2
+Informational
+References
+</del>
+<a href="#PER-changes" class="tocxref">
+<span class="secno">
+<ins class="diff-chg">B.1
+</ins></span><ins class="diff-chg">
+Changes
+for
+Proposed
+Edited
+Recommendation
+in
+2013
+</ins>
+</a>
+<del class="diff-old">8.
+Acknowledgments
+</del>
+</li>
+<li class="tocline">
+<a href="#2004-changes" class="tocxref">
+<span class="secno">
+<ins class="diff-chg">B.2
+</ins></span><ins class="diff-chg">
+Changes
+history
+of
+the
+2004
+Recommendation
+</ins>
+</a>
+<del class="diff-old">Appendix
+A
+RDF
+Schema
+as
+RDF/XML
+</del>
+</li>
+</ul>
+</li>
+<li class="tocline">
+<a href="#references" class="tocxref">
+<span class="secno">
+<ins class="diff-chg">C.
+</ins></span><ins class="diff-chg">
+References
+</ins>
+</a>
+<ul class="toc">
+<li class="tocline">
+<a href="#normative-references" class="tocxref">
+<span class="secno">
+<ins class="diff-chg">C.1
+</ins></span><ins class="diff-chg">
+Normative
+references
+</ins></a>
+</li>
+<li class="tocline">
+<a href="#informative-references" class="tocxref">
+<span class="secno">
+<ins class="diff-new">C.2
+</ins></span><ins class="diff-new">
+Informative
+references
+</ins>
+</a>
+</li>
+</ul>
+</li>
+</ul>
+</section>
+<section id="ch_introduction" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_introduction">
+<span class="secno">
+1.
+</span>
+Introduction
+</h2>
+<p>
+The
+Resource
+Description
+Framework
+(RDF)
+is
+a
+general-purpose
+language
+for
+representing
+information
+in
+the
+Web.
+</p>
+<p>
+<del class="diff-old">This
+specification
+is
+one
+of
+several
+[
+RDF-PRIMER
+]
+[
+RDF-SYNTAX
+]
+[
+RDF-CONCEPTS
+]
+[
+RDF-SEMANTICS
+]
+[
+RDF-TESTS
+]
+related
+to
+RDF.
+The
+reader
+is
+referred
+to
+the
+</del>
+RDF
+<del class="diff-old">schema
+chapter
+in
+the
+RDF
+Primer
+[
+RDF-PRIMER
+]
+for
+an
+informal
+introduction
+and
+examples
+of
+the
+use
+of
+the
+concepts
+specified
+in
+this
+document.
+This
+specification
+introduces
+RDF's
+</del>
+<ins class="diff-chg">Schema
+provides
+a
+data-modelling
+</ins>
+vocabulary
+<del class="diff-old">description
+language,
+</del>
+<ins class="diff-chg">for
+</ins>
+RDF
+<del class="diff-old">Schema.
+</del>
+<ins class="diff-chg">data.
+</ins>
+It
+is
+complemented
+by
+several
+companion
+documents
+which
+describe
+<del class="diff-old">RDF's
+XML
+encoding
+</del>
+<ins class="diff-chg">the
+basic
+concepts
+and
+abstract
+stntax
+of
+RDF
+</ins>
+[
+<del class="diff-old">RDF-SYNTAX
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-CONCEPTS">
+<ins class="diff-chg">RDF11-CONCEPTS
+</ins>
+</a>
+</cite>
+],
+<del class="diff-old">mathematical
+foundations
+</del>
+<ins class="diff-chg">the
+formal
+semantics
+of
+RDF
+</ins>
+[
+<del class="diff-old">RDF-SEMANTICS
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-MT">
+<ins class="diff-chg">RDF11-MT
+</ins>
+</a>
+<del class="diff-old">]
+</del>
+</cite>
+<ins class="diff-chg">],
+</ins>
+and
+<del class="diff-old">Resource
+Description
+Framework
+(RDF):
+Concepts
+</del>
+<ins class="diff-chg">various
+concrete
+syntaxes
+for
+RDF,
+such
+as
+Turtle
+[
+</ins><cite><a class="bibref" href="#bib-TURTLE"><ins class="diff-chg">
+TURTLE
+</ins></a></cite><ins class="diff-chg">
+],
+TriG,
+[
+</ins><cite><a class="bibref" href="#bib-TRIG"><ins class="diff-chg">
+TRIG
+</ins></a></cite><ins class="diff-chg">
+],
+</ins>
+and
+<del class="diff-old">Abstract
+Syntax
+</del>
+<ins class="diff-chg">JSON-LD
+</ins>
+[
+<del class="diff-old">RDF-CONCEPTS
+</del>
+<cite>
+<a class="bibref" href="#bib-JSON-LD">
+<ins class="diff-chg">JSON-LD
+</ins>
+</a>
+</cite>
+].
+The
+RDF
+Primer
+[
+<del class="diff-old">RDF-PRIMER
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-PRIMER">
+<ins class="diff-chg">RDF11-PRIMER
+</ins>
+</a>
+</cite>
+]
+provides
+an
+informal
+introduction
+and
+examples
+of
+the
+use
+of
+the
+concepts
+specified
+in
+this
+document.
+</p>
+<p>
+This
+document
+is
+intended
+to
+provide
+a
+clear
+specification
+of
+<del class="diff-old">the
+</del>
+RDF
+<del class="diff-old">vocabulary
+description
+language
+</del>
+<ins class="diff-chg">Schema
+</ins>
+to
+those
+who
+find
+the
+formal
+semantics
+<del class="diff-old">specification,
+RDF
+Semantics
+</del>
+<ins class="diff-chg">specification
+</ins>
+[
+<del class="diff-old">RDF-SEMANTICS
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-MT">
+<ins class="diff-chg">RDF11-MT
+</ins>
+</a>
+</cite>
+]
+daunting.
+Thus,
+this
+document
+duplicates
+material
+also
+specified
+in
+the
+RDF
+Semantics
+<del class="diff-old">specification
+.
+</del>
+<ins class="diff-chg">specification.
+</ins>
+Where
+there
+is
+disagreement
+between
+this
+document
+and
+the
+RDF
+Semantics
+specification,
+the
+RDF
+Semantics
+specification
+should
+be
+taken
+to
+be
+correct.
+</p>
+<p>
+RDF
+<del class="diff-old">properties
+may
+be
+thought
+of
+as
+attributes
+of
+resources
+and
+in
+this
+sense
+correspond
+to
+traditional
+attribute-value
+pairs.
+RDF
+properties
+also
+represent
+relationships
+between
+resources.
+RDF
+however,
+provides
+no
+mechanisms
+for
+describing
+these
+properties,
+nor
+does
+it
+provide
+any
+mechanisms
+for
+describing
+the
+relationships
+between
+these
+properties
+and
+other
+resources.
+That
+is
+the
+role
+of
+the
+RDF
+vocabulary
+description
+language,
+RDF
+Schema.
+RDF
+</del>
+Schema
+<del class="diff-old">defines
+classes
+and
+properties
+that
+may
+be
+used
+to
+describe
+classes,
+properties
+and
+other
+resources.
+This
+document
+does
+not
+specify
+a
+vocabulary
+of
+descriptive
+properties
+such
+as
+"author".
+Instead
+it
+specifies
+mechanisms
+that
+may
+be
+used
+to
+name
+and
+describe
+properties
+and
+the
+classes
+of
+resource
+they
+describe.
+RDF's
+vocabulary
+description
+language,
+RDF
+Schema,
+</del>
+is
+a
+<a href="http://www.w3.org/TR/rdf11-mt/#semantic-extensions-and-entailment-regimes">
+semantic
+extension
+<del class="diff-old">(as
+defined
+in
+[
+RDF-SEMANTICS
+</del>
+</a>
+<del class="diff-old">])
+</del>
+of
+RDF.
+It
+provides
+mechanisms
+for
+describing
+groups
+of
+related
+resources
+and
+the
+relationships
+between
+these
+resources.
+RDF
+Schema
+<del class="diff-old">vocabulary
+descriptions
+are
+</del>
+<ins class="diff-chg">is
+</ins>
+written
+in
+RDF
+using
+the
+terms
+described
+in
+this
+document.
+These
+resources
+are
+used
+to
+determine
+characteristics
+of
+other
+resources,
+such
+as
+the
+<a href="#ch_domain">
+domains
+</a>
+and
+<a href="#ch_range">
+ranges
+</a>
+of
+properties.
+</p>
+<p>
+The
+RDF
+<del class="diff-old">vocabulary
+description
+language
+</del>
+<ins class="diff-chg">Schema
+</ins>
+class
+and
+property
+system
+is
+similar
+to
+the
+type
+systems
+of
+object-oriented
+programming
+languages
+such
+as
+Java.
+RDF
+<ins class="diff-new">Schema
+</ins>
+differs
+from
+many
+such
+systems
+in
+that
+instead
+of
+defining
+a
+class
+in
+terms
+of
+the
+properties
+its
+instances
+may
+have,
+<del class="diff-old">the
+</del>
+RDF
+<del class="diff-old">vocabulary
+description
+language
+</del>
+<ins class="diff-chg">Schema
+</ins>
+describes
+properties
+in
+terms
+of
+the
+classes
+of
+resource
+to
+which
+they
+apply.
+This
+is
+the
+role
+of
+the
+<a href="#ch_domain">
+domain
+</a>
+and
+<a href="#ch_range">
+range
+</a>
+mechanisms
+described
+in
+this
+specification.
+For
+example,
+we
+could
+define
+the
+<code>
+eg:author
+</code>
+property
+to
+have
+a
+domain
+of
+<code>
+eg:Document
+</code>
+and
+a
+range
+of
+<code>
+eg:Person
+</code>,
+whereas
+a
+classical
+object
+oriented
+system
+might
+typically
+define
+a
+class
+<code>
+eg:Book
+</code>
+with
+an
+attribute
+called
+<code>
+eg:author
+</code>
+of
+type
+<code>
+eg:Person
+</code>.
+Using
+the
+RDF
+approach,
+it
+is
+easy
+for
+others
+to
+subsequently
+define
+additional
+properties
+with
+a
+domain
+of
+eg:
+<code>
+Document
+</code>
+or
+a
+range
+of
+<code>
+eg:Person
+</code>.
+This
+can
+be
+done
+without
+the
+need
+to
+re-define
+the
+original
+description
+of
+these
+classes.
+One
+benefit
+of
+the
+RDF
+property-centric
+approach
+is
+that
+it
+allows
+anyone
+to
+extend
+the
+description
+of
+existing
+resources,
+one
+of
+the
+architectural
+principles
+of
+the
+Web
+[
+<cite>
+<a class="bibref" href="#bib-BERNERS-LEE98">
+BERNERS-LEE98
+</a>
+</cite>
+].
+</p>
+<p>
+This
+specification
+does
+not
+attempt
+to
+enumerate
+all
+the
+possible
+forms
+of
+<del class="diff-old">vocabulary
+description
+that
+are
+useful
+for
+</del>
+representing
+the
+meaning
+of
+RDF
+classes
+and
+properties.
+Instead,
+the
+RDF
+<del class="diff-old">vocabulary
+description
+</del>
+<ins class="diff-chg">Schema
+</ins>
+strategy
+is
+to
+acknowledge
+that
+there
+are
+many
+techniques
+through
+which
+the
+meaning
+of
+classes
+and
+properties
+can
+be
+described.
+Richer
+vocabulary
+or
+'ontology'
+languages
+such
+as
+<del class="diff-old">DAML+OIL,
+W3C's
+[
+</del>
+OWL
+<ins class="diff-new">[
+</ins><cite><a class="bibref" href="#bib-OWL2-OVERVIEW"><ins class="diff-new">
+OWL2-OVERVIEW
+</ins>
+</a>
+<del class="diff-old">]
+language,
+</del>
+</cite>
+<ins class="diff-chg">],
+</ins>
+inference
+rule
+languages
+and
+other
+formalisms
+(for
+example
+temporal
+logics)
+will
+each
+contribute
+to
+our
+ability
+to
+capture
+meaningful
+generalizations
+about
+data
+in
+the
+Web.
+<del class="diff-old">RDF
+vocabulary
+designers
+can
+create
+and
+deploy
+Semantic
+Web
+applications
+using
+the
+RDF
+vocabulary
+description
+language
+1.0
+facilities,
+while
+exploring
+richer
+vocabulary
+description
+languages
+that
+share
+this
+general
+approach.
+</del>
+</p>
+<p>
+The
+language
+defined
+in
+this
+specification
+consists
+of
+a
+collection
+of
+RDF
+resources
+that
+can
+be
+used
+to
+describe
+<del class="diff-old">properties
+of
+</del>
+other
+RDF
+resources
+<del class="diff-old">(including
+properties)
+</del>
+in
+application-specific
+RDF
+vocabularies.
+The
+core
+vocabulary
+is
+defined
+in
+a
+namespace
+informally
+called
+<del class="diff-old">'rdfs'
+</del>
+<code>
+<ins class="diff-chg">rdfs
+</ins></code>
+here.
+That
+namespace
+is
+identified
+by
+the
+<del class="diff-old">URI-Reference
+</del>
+<ins class="diff-chg">IRI
+</ins></p><blockquote><code>
+http://www.w3.org/2000/01/rdf-schema#
+</code>
+</blockquote>
+and
+is
+<ins class="diff-new">conventionally
+</ins>
+associated
+with
+the
+prefix
+<del class="diff-old">'rdfs'.
+</del>
+<code>
+<ins class="diff-chg">rdfs:
+</ins></code>.
+This
+specification
+also
+uses
+the
+prefix
+<del class="diff-old">'rdf'
+</del>
+<code>
+<ins class="diff-chg">rdf:
+</ins></code>
+to
+refer
+to
+the
+RDF
+namespace
+<del class="diff-old">http://www.w3.org/1999/02/22-rdf-syntax-ns#.
+</del>
+<p>
+</p>
+<blockquote>
+<code>
+<ins class="diff-new">http://www.w3.org/1999/02/22-rdf-syntax-ns#
+</ins></code></blockquote>
+<p>
+For
+convenience
+and
+readability,
+this
+specification
+uses
+an
+abbreviated
+form
+to
+represent
+<del class="diff-old">URI-References.
+</del>
+<ins class="diff-chg">IRIs.
+</ins>
+A
+name
+of
+the
+form
+prefix:suffix
+should
+be
+interpreted
+as
+a
+<del class="diff-old">URI-Reference
+</del>
+<ins class="diff-chg">IRI
+</ins>
+consisting
+of
+the
+<del class="diff-old">URI-Reference
+</del>
+<ins class="diff-chg">IRI
+</ins>
+associated
+with
+the
+prefix
+concatenated
+with
+the
+suffix.
+</p>
+</section>
+<section id="ch_classes" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_classes">
+<span class="secno">
+2.
+</span>
+Classes
+</h2>
+<p>
+Resources
+may
+be
+divided
+into
+groups
+called
+classes.
+The
+members
+of
+a
+class
+are
+known
+as
+<em>
+instances
+</em>
+of
+the
+class.
+Classes
+are
+themselves
+resources.
+They
+are
+often
+identified
+by
+<del class="diff-old">RDF
+URI
+References
+</del>
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-IRIs">
+<ins class="diff-chg">IRIs
+</ins>
+</a>
+and
+may
+be
+described
+using
+RDF
+properties.
+The
+<code>
+<a href="#ch_type">
+rdf:type
+</a>
+</code>
+property
+may
+be
+used
+to
+state
+that
+a
+resource
+is
+an
+instance
+of
+a
+class.
+</p>
+<p>
+RDF
+distinguishes
+between
+a
+class
+and
+the
+set
+of
+its
+instances.
+Associated
+with
+each
+class
+is
+a
+set,
+called
+the
+class
+extension
+of
+the
+class,
+which
+is
+the
+set
+of
+the
+instances
+of
+the
+class.
+Two
+classes
+may
+have
+the
+same
+set
+of
+instances
+but
+be
+different
+classes.
+For
+example,
+the
+tax
+office
+may
+define
+the
+class
+of
+people
+living
+at
+the
+same
+address
+as
+the
+editor
+of
+this
+document.
+The
+Post
+Office
+may
+define
+the
+class
+of
+people
+whose
+address
+has
+the
+same
+zip
+code
+as
+the
+address
+of
+the
+author.
+It
+is
+possible
+for
+these
+classes
+to
+have
+exactly
+the
+same
+instances,
+yet
+to
+have
+different
+properties.
+Only
+one
+of
+the
+classes
+has
+the
+property
+that
+it
+was
+defined
+by
+the
+tax
+office,
+and
+only
+the
+other
+has
+the
+property
+that
+it
+was
+defined
+by
+the
+Post
+Office.
+</p>
+<p>
+A
+class
+may
+be
+a
+member
+of
+its
+own
+class
+extension
+and
+may
+be
+an
+instance
+of
+itself.
+</p>
+<p>
+The
+group
+of
+resources
+that
+are
+RDF
+Schema
+classes
+is
+itself
+a
+class
+called
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+</p>
+<p id="def-subclass">
+If
+a
+class
+C
+is
+a
+<em>
+subclass
+</em>
+of
+a
+class
+C',
+then
+all
+instances
+of
+C
+will
+also
+be
+instances
+of
+C'.
+The
+<a href="#ch_subclassof">
+<code>
+rdfs:subClassOf
+</code>
+</a>
+property
+may
+be
+used
+to
+state
+that
+one
+class
+is
+a
+subclass
+of
+another.
+The
+term
+super-class
+is
+used
+as
+the
+inverse
+of
+subclass.
+If
+a
+class
+C'
+is
+a
+super-class
+of
+a
+class
+C,
+then
+all
+instances
+of
+C
+are
+also
+instances
+of
+C'.
+</p>
+<p>
+The
+RDF
+Concepts
+and
+Abstract
+Syntax
+[
+<del class="diff-old">RDF-CONCEPTS
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-CONCEPTS">
+<ins class="diff-chg">RDF11-CONCEPTS
+</ins>
+</a>
+</cite>
+]
+specification
+defines
+the
+RDF
+concept
+of
+an
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-Datatypes">
+RDF
+datatype
+</a>.
+All
+datatypes
+are
+classes.
+The
+instances
+of
+a
+class
+that
+is
+a
+datatype
+are
+the
+members
+of
+the
+value
+space
+of
+the
+datatype.
+</p>
+<section id="ch_resource" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_resource">
+<span class="secno">
+2.1
+</span>
+rdfs:Resource
+</h3>
+<p>
+All
+things
+described
+by
+RDF
+are
+called
+<em>
+resources
+</em>,
+and
+are
+instances
+of
+the
+class
+<code>
+rdfs:Resource
+</code>.
+This
+is
+the
+class
+of
+everything.
+All
+other
+classes
+are
+<a href="#def-subclass">
+subclasses
+</a>
+of
+this
+class.
+<code>
+rdfs:Resource
+</code>
+is
+an
+instance
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+</p>
+</section>
+<section id="ch_class" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_class">
+<span class="secno">
+2.2
+</span>
+rdfs:Class
+</h3>
+<p>
+This
+is
+the
+class
+of
+resources
+that
+are
+RDF
+classes.
+<code>
+rdfs:Class
+</code>
+is
+an
+instance
+of
+<code>
+rdfs:Class.
+</code>
+</p>
+</section>
+<section id="ch_literal" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_literal">
+<span class="secno">
+2.3
+</span>
+rdfs:Literal
+</h3>
+<p>
+The
+class
+<code>
+rdfs:Literal
+</code>
+is
+the
+class
+of
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal">
+literal
+</a>
+values
+such
+as
+strings
+and
+integers.
+Property
+values
+such
+as
+textual
+strings
+are
+examples
+of
+RDF
+literals.
+<del class="diff-old">Literals
+may
+be
+plain
+or
+typed
+.
+A
+typed
+literal
+is
+an
+instance
+of
+a
+datatype
+class.
+This
+specification
+does
+not
+define
+the
+class
+of
+plain
+literals.
+</del>
+</p>
+<p>
+<code>
+rdfs:Literal
+</code>
+is
+an
+instance
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+rdfs:Literal
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<a href="#ch_resource">
+rdfs:Resource
+</a>.
+</p>
+</section>
+<section id="ch_datatype" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_datatype">
+<span class="secno">
+2.4
+</span>
+rdfs:Datatype
+</h3>
+<p>
+<code>
+rdfs:Datatype
+</code>
+is
+the
+class
+of
+datatypes.
+All
+instances
+of
+<code>
+rdfs:Datatype
+</code>
+correspond
+to
+the
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-Datatypes">
+RDF
+model
+of
+a
+datatype
+</a>
+described
+in
+the
+RDF
+Concepts
+specification
+[
+<del class="diff-old">RDF-CONCEPTS
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-CONCEPTS">
+<ins class="diff-chg">RDF11-CONCEPTS
+</ins>
+</a>
+</cite>
+].
+<code>
+rdfs:Datatype
+</code>
+is
+both
+an
+instance
+of
+and
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+Each
+instance
+of
+<code>
+rdfs:Datatype
+</code>
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+rdfs:Literal.
+</p>
+</section>
+<section id="ch_langstring" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_langstring">
+<span class="secno">
+<ins class="diff-chg">2.5
+</ins></span><ins class="diff-chg">
+rdf:langString
+</ins></h3><p><ins class="diff-chg">
+The
+class
+</ins><code><ins class="diff-chg">
+rdf:langString
+</ins></code><ins class="diff-chg">
+is
+the
+class
+of
+</ins><a href="http://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string"><ins class="diff-chg">
+language-tagged
+string
+values
+</ins></a>.<code><ins class="diff-chg">
+rdf:langString
+</ins></code><ins class="diff-chg">
+is
+an
+instance
+of
+</ins><code><ins class="diff-chg">
+rdfs:Datatype
+</ins></code><ins class="diff-chg">
+and
+a
+</ins><a href="#def-subclass"><ins class="diff-chg">
+subclass
+</ins></a><ins class="diff-chg">
+of
+</ins><a href="#ch_literal">
+<code>
+<ins class="diff-new">rdfs:Literal
+</ins></code></a>.</p></section><section class="informative" id="ch_html" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_ch_html"><span class="secno"><ins class="diff-new">
+2.6
+</ins></span><ins class="diff-new">
+rdf:HTML
+</ins></h3><p><em><ins class="diff-new">
+This
+section
+is
+non-normative.
+</ins></em></p><p><ins class="diff-new">
+The
+class
+</ins><code><ins class="diff-new">
+rdf:HTML
+</ins></code><ins class="diff-new">
+is
+the
+class
+of
+</ins><a href="http://www.w3.org/TR/rdf11-concepts/#section-html"><ins class="diff-new">
+HTML
+literal
+values
+</ins></a>.<code><ins class="diff-new">
+rdf:HTML
+</ins></code><ins class="diff-new">
+is
+an
+instance
+of
+</ins><code><ins class="diff-new">
+rdfs:Datatype
+</ins></code><ins class="diff-new">
+and
+a
+</ins><a href="#def-subclass"><ins class="diff-new">
+subclass
+</ins>
+</a>
+<del class="diff-old">2.5
+</del>
+<ins class="diff-chg">of
+</ins><a href="#ch_literal"><code><ins class="diff-chg">
+rdfs:Literal
+</ins></code></a>.</p></section><section class="informative" id="ch_xmlliteral" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_ch_xmlliteral"><span class="secno"><ins class="diff-chg">
+2.7
+</ins></span>
+rdf:XMLLiteral
+</h3>
+<p>
+<em>
+<ins class="diff-chg">This
+section
+is
+non-normative.
+</ins></em></p>
+<p>
+The
+class
+<code>
+rdf:XMLLiteral
+</code>
+is
+the
+class
+of
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-XMLLiteral">
+XML
+literal
+values
+</a>.
+<code>
+rdf:XMLLiteral
+</code>
+is
+an
+instance
+of
+<code>
+rdfs:Datatype
+</code>
+and
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<a href="#ch_literal">
+<code>
+rdfs:Literal
+</code>
+</a>.
+</p>
+</section>
+<section id="ch_property" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_property">
+<del class="diff-old">2.6
+</del>
+<span class="secno">
+<ins class="diff-chg">2.8
+</ins></span>
+rdf:Property
+</h3>
+<p>
+<code>
+rdf:Property
+</code>
+is
+the
+class
+of
+RDF
+properties.
+<code>
+rdf:Property
+</code>
+is
+an
+instance
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+</p>
+</section>
+</section>
+<section id="ch_properties" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_properties">
+<span class="secno">
+3.
+</span>
+Properties
+</h2>
+<p>
+The
+RDF
+Concepts
+and
+Abstract
+Syntax
+specification
+[
+<del class="diff-old">RDF-CONCEPTS
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-CONCEPTS">
+<ins class="diff-chg">RDF11-CONCEPTS
+</ins>
+</a>
+</cite>
+]
+describes
+the
+concept
+of
+an
+RDF
+property
+as
+a
+relation
+between
+subject
+resources
+and
+object
+resources.
+</p>
+<p id="def-subproperty">
+This
+specification
+defines
+the
+concept
+of
+subproperty.
+The
+<a href="#ch_subclassof">
+<code>
+rdfs:subPropertyOf
+</code>
+</a>
+property
+may
+be
+used
+to
+state
+that
+one
+property
+is
+a
+subproperty
+of
+another.
+If
+a
+property
+P
+is
+a
+subproperty
+of
+property
+P',
+then
+all
+pairs
+of
+resources
+which
+are
+related
+by
+P
+are
+also
+related
+by
+P'.
+The
+term
+super-property
+is
+often
+used
+as
+the
+inverse
+of
+subproperty.
+If
+a
+property
+P'
+is
+a
+super-property
+of
+a
+property
+P,
+then
+all
+pairs
+of
+resources
+which
+are
+related
+by
+P
+are
+also
+related
+by
+P'.
+This
+specification
+does
+not
+define
+a
+top
+property
+that
+is
+the
+super-property
+of
+all
+properties.
+</p>
+<div class="note">
+<div class="note-title" aria-level="2" role="heading" id="h_note_1">
+<span>
+Note
+<del class="diff-old">:
+</del>
+</span>
+</div>
+<p class="">
+The
+basic
+facilities
+provided
+by
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+and
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+do
+not
+provide
+any
+direct
+way
+to
+indicate
+property
+restrictions
+that
+are
+local
+to
+a
+class.
+Although
+it
+is
+possible
+to
+combine
+use
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+and
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+with
+sub-property
+hierarchies,
+direct
+support
+for
+such
+declarations
+are
+provided
+by
+richer
+Web
+Ontology
+languages
+such
+as
+<del class="diff-old">[
+</del>
+OWL
+<ins class="diff-new">[
+</ins><cite><a class="bibref" href="#bib-OWL2-OVERVIEW"><ins class="diff-new">
+OWL2-OVERVIEW
+</ins>
+</a>
+</cite>
+].
+</p>
+</div>
+<section id="ch_range" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_range">
+<span class="secno">
+3.1
+</span>
+rdfs:range
+</h3>
+<p>
+<code>
+rdfs:range
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+state
+that
+the
+values
+of
+a
+property
+are
+instances
+of
+one
+or
+more
+classes.
+</p>
+<p>
+The
+triple
+</p>
+<blockquote>
+<code>
+P
+rdfs:range
+C
+</code>
+</blockquote>
+<p>
+states
+that
+P
+is
+an
+instance
+of
+the
+class
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>,
+that
+C
+is
+an
+instance
+of
+the
+class
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>
+and
+that
+the
+resources
+denoted
+by
+the
+objects
+of
+triples
+whose
+predicate
+is
+P
+are
+instances
+of
+the
+class
+C.
+</p>
+<p>
+Where
+P
+has
+more
+than
+one
+rdfs:range
+property,
+then
+the
+resources
+denoted
+by
+the
+objects
+of
+triples
+with
+predicate
+P
+are
+instances
+of
+all
+the
+classes
+stated
+by
+the
+<code>
+rdfs:range
+</code>
+properties.
+</p>
+<p>
+The
+<code>
+rdfs:range
+</code>
+property
+can
+be
+applied
+to
+itself.
+The
+rdfs:range
+of
+<code>
+rdfs:range
+</code>
+is
+the
+class
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+This
+states
+that
+any
+resource
+that
+is
+the
+value
+of
+an
+<code>
+rdfs:range
+</code>
+property
+is
+an
+instance
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+</p>
+<p>
+The
+<code>
+rdfs:range
+</code>
+property
+is
+applied
+to
+properties.
+This
+can
+be
+represented
+in
+RDF
+using
+the
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+property.
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdfs:range
+</code>
+is
+the
+class
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>.
+This
+states
+that
+any
+resource
+with
+an
+<code>
+rdfs:range
+</code>
+property
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_domain" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_domain">
+<span class="secno">
+3.2
+</span>
+rdfs:domain
+</h3>
+<p>
+<code>
+rdfs:domain
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+state
+that
+any
+resource
+that
+has
+a
+given
+property
+is
+an
+instance
+of
+one
+or
+more
+classes.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+P
+rdfs:domain
+C
+</code>
+</blockquote>
+<p>
+states
+that
+P
+is
+an
+instance
+of
+the
+class
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>,
+that
+C
+is
+a
+instance
+of
+the
+class
+<code>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</code>
+and
+that
+the
+resources
+denoted
+by
+the
+subjects
+of
+triples
+whose
+predicate
+is
+P
+are
+instances
+of
+the
+class
+C.
+</p>
+<p>
+Where
+a
+property
+P
+has
+more
+than
+one
+rdfs:domain
+property,
+then
+the
+resources
+denoted
+by
+subjects
+of
+triples
+with
+predicate
+P
+are
+instances
+of
+all
+the
+classes
+stated
+by
+the
+<code>
+rdfs:domain
+</code>
+properties.
+</p>
+<p>
+The
+<code>
+rdfs:domain
+</code>
+property
+may
+be
+applied
+to
+itself.
+The
+rdfs:domain
+of
+<code>
+rdfs:domain
+</code>
+is
+the
+class
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>.
+This
+states
+that
+any
+resource
+with
+an
+<code>
+rdfs:domain
+</code>
+property
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>.
+</p>
+<p>
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdfs:domain
+</code>
+is
+the
+class
+<code>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</code>.
+This
+states
+that
+any
+resource
+that
+is
+the
+value
+of
+an
+<code>
+rdfs:domain
+</code>
+property
+is
+an
+instance
+of
+<code>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_type" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_type">
+<span class="secno">
+3.3
+</span>
+rdf:type
+</h3>
+<p>
+<code>
+rdf:type
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+state
+that
+a
+resource
+is
+an
+instance
+of
+a
+class.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+R
+rdf:type
+C
+</code>
+</blockquote>
+<p>
+states
+that
+C
+is
+an
+instance
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>
+and
+R
+is
+an
+instance
+of
+C.
+</p>
+<p>
+The
+<code>
+<a href="#ch_domain">
+rdfs:domain
+</a>
+</code>
+of
+<code>
+rdf:type
+</code>
+is
+<a href="#ch_resource">
+rdfs:Resource
+</a>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+rdf:type
+is
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+</p>
+</section>
+<section id="ch_subclassof" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_subclassof">
+<span class="secno">
+3.4
+</span>
+rdfs:subClassOf
+</h3>
+<p>
+The
+property
+<code>
+rdfs:subClassOf
+</code>
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+that
+is
+used
+to
+state
+that
+all
+the
+instances
+of
+one
+class
+are
+instances
+of
+another.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+C1
+rdfs:subClassOf
+C2
+</code>
+</blockquote>
+<p>
+states
+that
+C1
+is
+an
+instance
+of
+<code>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</code>,
+C2
+is
+an
+instance
+of
+<code>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</code>
+and
+C1
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+C2.
+The
+<code>
+rdfs:subClassOf
+</code>
+property
+is
+transitive.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdfs:subClassOf
+</code>
+is
+<code>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdfs:subClassOf
+</code>
+is
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>.
+</p>
+</section>
+<section id="ch_subpropertyof" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_subpropertyof">
+<span class="secno">
+3.5
+</span>
+rdfs:subPropertyOf
+</h3>
+<p>
+The
+property
+<code>
+rdfs:subPropertyOf
+</code>
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+that
+is
+used
+to
+state
+that
+all
+resources
+related
+by
+one
+property
+are
+also
+related
+by
+another.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+P1
+rdfs:subPropertyOf
+P2
+</code>
+</blockquote>
+<p>
+states
+that
+P1
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>,
+P2
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+and
+P1
+is
+a
+<a href="#def-subproperty">
+subproperty
+</a>
+of
+P2.
+The
+<code>
+rdfs:subPropertyOf
+</code>
+property
+is
+transitive.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdfs:subPropertyOf
+</code>
+is
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+rdfs:subPropertyOf
+is
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>.
+</p>
+</section>
+<section id="ch_label" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_label">
+<span class="secno">
+3.6
+</span>
+rdfs:label
+</h3>
+<p>
+<code>
+rdfs:label
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+may
+be
+used
+to
+provide
+a
+human-readable
+version
+of
+a
+resource's
+name.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+R
+rdfs:label
+L
+</code>
+</blockquote>
+<p>
+states
+that
+L
+is
+a
+human
+readable
+label
+for
+R.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdfs:label
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+rdfs:label
+is
+<a href="#ch_literal">
+<code>
+rdfs:Literal
+</code>
+</a>.
+</p>
+<p>
+Multilingual
+labels
+are
+supported
+using
+the
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal">
+language
+tagging
+</a>
+facility
+of
+RDF
+literals.
+</p>
+</section>
+<section id="ch_comment" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_comment">
+<span class="secno">
+3.7
+</span>
+rdfs:comment
+</h3>
+<p>
+<code>
+rdfs:comment
+</code>
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+that
+may
+be
+used
+to
+provide
+a
+human-readable
+description
+of
+a
+resource.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+R
+rdfs:comment
+L
+</code>
+</blockquote>
+<p>
+states
+that
+L
+is
+a
+human
+readable
+description
+of
+R.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdfs:comment
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+rdfs:comment
+is
+<a href="#ch_literal">
+<code>
+rdfs:Literal
+</code>
+</a>.
+</p>
+<p>
+A
+textual
+comment
+helps
+clarify
+the
+meaning
+of
+RDF
+classes
+and
+properties.
+Such
+in-line
+documentation
+complements
+the
+use
+of
+both
+formal
+techniques
+(Ontology
+and
+rule
+languages)
+and
+informal
+(prose
+documentation,
+examples,
+test
+cases).
+A
+variety
+of
+documentation
+forms
+can
+be
+combined
+to
+indicate
+the
+intended
+meaning
+of
+the
+classes
+and
+properties
+described
+in
+an
+RDF
+vocabulary.
+Since
+RDF
+vocabularies
+are
+expressed
+as
+RDF
+graphs,
+vocabularies
+defined
+in
+other
+namespaces
+may
+be
+used
+to
+provide
+richer
+documentation.
+</p>
+<p>
+Multilingual
+documentation
+is
+supported
+through
+use
+of
+the
+<a href="http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal">
+language
+tagging
+</a>
+facility
+of
+RDF
+literals.
+</p>
+</section>
+</section>
+<section id="ch_domainrange" class="informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_domainrange">
+<span class="secno">
+4.
+</span>
+Using
+the
+Domain
+and
+Range
+<del class="diff-old">Vocabulary
+(Informative)
+</del>
+<ins class="diff-chg">vocabulary
+</ins>
+</h2>
+<p>
+<em>
+<ins class="diff-new">This
+section
+is
+non-normative.
+</ins></em></p><p>
+This
+specification
+introduces
+an
+RDF
+vocabulary
+for
+describing
+the
+meaningful
+use
+of
+properties
+and
+classes
+in
+RDF
+data.
+For
+example,
+an
+RDF
+vocabulary
+might
+describe
+limitations
+on
+the
+types
+of
+values
+that
+are
+appropriate
+for
+some
+property,
+or
+on
+the
+classes
+to
+which
+it
+makes
+sense
+to
+ascribe
+such
+properties.
+</p>
+<p>
+<del class="diff-old">The
+</del>
+RDF
+<del class="diff-old">Vocabulary
+Description
+language
+</del>
+<ins class="diff-chg">Schema
+</ins>
+provides
+a
+mechanism
+for
+describing
+this
+information,
+but
+does
+not
+say
+whether
+or
+how
+an
+application
+should
+use
+it.
+For
+example,
+while
+an
+RDF
+vocabulary
+can
+assert
+that
+an
+<code>
+author
+</code>
+property
+is
+used
+to
+indicate
+resources
+that
+are
+instances
+of
+the
+class
+<code>
+Person
+</code>,
+it
+does
+not
+say
+whether
+or
+how
+an
+application
+should
+act
+in
+processing
+that
+range
+information.
+Different
+applications
+will
+use
+this
+information
+in
+different
+ways.
+For
+example,
+data
+checking
+tools
+might
+use
+this
+to
+help
+discover
+errors
+in
+some
+data
+set,
+an
+interactive
+editor
+might
+suggest
+appropriate
+values,
+and
+a
+reasoning
+application
+might
+use
+it
+to
+infer
+additional
+information
+from
+instance
+data.
+</p>
+<p>
+RDF
+vocabularies
+can
+describe
+relationships
+between
+vocabulary
+items
+from
+multiple
+independently
+developed
+vocabularies.
+Since
+<del class="diff-old">URI-References
+</del>
+<ins class="diff-chg">IRIs
+</ins>
+are
+used
+to
+identify
+classes
+and
+properties
+<del class="diff-old">in
+</del>
+<ins class="diff-chg">on
+</ins>
+the
+Web,
+it
+is
+possible
+to
+create
+new
+properties
+that
+have
+a
+<code>
+domain
+</code>
+or
+<code>
+range
+</code>
+whose
+value
+is
+a
+class
+defined
+in
+another
+namespace.
+</p>
+</section>
+<section id="ch_othervocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_othervocab">
+<span class="secno">
+5.
+</span>
+Other
+vocabulary
+</h2>
+<p>
+Additional
+classes
+and
+properties,
+including
+constructs
+for
+representing
+containers
+and
+RDF
+statements,
+and
+for
+deploying
+RDF
+vocabulary
+descriptions
+in
+the
+World
+Wide
+<del class="diff-old">Web
+</del>
+<ins class="diff-chg">Web,
+</ins>
+are
+defined
+in
+this
+section.
+</p>
+<section class="informative" id="ch_containervocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_containervocab">
+<span class="secno">
+5.1
+</span>
+Container
+Classes
+and
+Properties
+</h3>
+<p>
+<em>
+<ins class="diff-new">This
+section
+is
+non-normative.
+</ins></em></p><p>
+RDF
+containers
+are
+resources
+that
+are
+used
+to
+represent
+collections.
+<del class="diff-old">An
+introduction
+to
+RDF
+containers
+with
+examples
+may
+be
+found
+in
+the
+RDF
+Primer
+[
+RDF-PRIMER
+].
+</del>
+The
+same
+resource
+may
+appear
+in
+a
+container
+more
+than
+once.
+Unlike
+containment
+in
+the
+physical
+world,
+a
+container
+may
+be
+contained
+in
+itself.
+</p>
+<p>
+Three
+different
+kinds
+of
+container
+are
+defined.
+Whilst
+the
+formal
+semantics
+[
+<del class="diff-old">RDF-SEMANTICS
+</del>
+<cite>
+<a class="bibref" href="#bib-RDF11-MT">
+<ins class="diff-chg">RDF11-MT
+</ins>
+</a>
+</cite>
+]
+of
+all
+three
+classes
+of
+container
+are
+identical,
+different
+classes
+may
+be
+used
+to
+indicate
+informally
+further
+information.
+An
+rdf:Bag
+is
+used
+to
+indicate
+that
+the
+container
+is
+intended
+to
+be
+unordered.
+An
+rdf:Seq
+is
+used
+to
+indicate
+that
+the
+order
+indicated
+by
+the
+numerical
+order
+of
+the
+<a href="#ch_containermembershipproperty">
+container
+<del class="diff-old">member
+ship
+</del>
+<ins class="diff-chg">membership
+</ins>
+properties
+</a>
+of
+the
+container
+is
+intended
+to
+be
+significant.
+An
+rdf:Alt
+container
+is
+used
+to
+indicate
+that
+typical
+processing
+of
+the
+container
+will
+be
+to
+select
+one
+of
+the
+members.
+</p>
+<p>
+Just
+as
+a
+hen
+house
+may
+have
+the
+property
+that
+it
+is
+made
+of
+wood,
+that
+does
+not
+mean
+that
+all
+the
+hens
+it
+contains
+are
+made
+of
+wood,
+a
+property
+of
+a
+container
+is
+not
+necessarily
+a
+property
+of
+all
+of
+its
+members.
+</p>
+<p>
+RDF
+containers
+are
+defined
+by
+the
+following
+classes
+and
+properties.
+</p>
+<section id="ch_container" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_container">
+<span class="secno">
+5.1.1
+</span>
+rdfs:Container
+</h4>
+<p>
+The
+<code>
+rdfs:Container
+</code>
+class
+is
+a
+super-class
+of
+the
+RDF
+Container
+classes,
+i.e.
+<code>
+<a href="#ch_bag">
+rdf:Bag
+</a>
+</code>,
+<code>
+<a href="#ch_seq">
+rdf:Seq
+</a>
+</code>,
+<code>
+<a href="#ch_alt">
+rdf:Alt
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_bag" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_bag">
+<span class="secno">
+5.1.2
+</span>
+rdf:Bag
+</h4>
+<p>
+The
+<code>
+rdf:Bag
+</code>
+class
+is
+the
+class
+of
+RDF
+'Bag'
+containers.
+It
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<code>
+<a href="#ch_container">
+rdfs:Container
+</a>
+</code>.
+Whilst
+formally
+it
+is
+no
+different
+from
+an
+<code>
+<a href="#ch_seq">
+rdf:Seq
+</a>
+</code>
+or
+an
+<code>
+<a href="#ch_alt">
+rdf:Alt
+</a>
+</code>,
+the
+<code>
+rdf:Bag
+</code>
+class
+is
+used
+conventionally
+to
+indicate
+to
+a
+human
+reader
+that
+the
+container
+is
+intended
+to
+be
+unordered.
+</p>
+</section>
+<section id="ch_seq" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_seq">
+<span class="secno">
+5.1.3
+</span>
+rdf:Seq
+</h4>
+<p>
+The
+<code>
+rdf:Seq
+</code>
+class
+is
+the
+class
+of
+RDF
+'Sequence'
+containers.
+It
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<code>
+<a href="#ch_container">
+rdfs:Container
+</a>
+</code>.
+Whilst
+formally
+it
+is
+no
+different
+from
+an
+<code>
+<a href="#ch_bag">
+rdf:Bag
+</a>
+</code>
+or
+an
+<code>
+<a href="#ch_alt">
+rdf:Alt
+</a>
+</code>,
+the
+<code>
+rdf:Seq
+</code>
+class
+is
+used
+conventionally
+to
+indicate
+to
+a
+human
+reader
+that
+the
+numerical
+ordering
+of
+the
+<a href="#ch_containermembershipproperty">
+container
+membership
+properties
+</a>
+of
+the
+container
+is
+intended
+to
+be
+significant.
+</p>
+</section>
+<section id="ch_alt" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_alt">
+<span class="secno">
+5.1.4
+</span>
+rdf:Alt
+</h4>
+<p>
+The
+<code>
+rdf:Alt
+</code>
+class
+is
+the
+class
+of
+RDF
+'Alternative'
+containers.
+It
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<code>
+<a href="#ch_container">
+rdfs:Container
+</a>
+</code>.
+Whilst
+formally
+it
+is
+no
+different
+from
+an
+<code>
+<a href="#ch_seq">
+rdf:Seq
+</a>
+</code>
+or
+an
+<code>
+<a href="#ch_bag">
+rdf:Bag
+</a>
+</code>,
+the
+<code>
+rdf:Alt
+</code>
+class
+is
+used
+conventionally
+to
+indicate
+to
+a
+human
+reader
+that
+typical
+processing
+will
+be
+to
+select
+one
+of
+the
+members
+of
+the
+container.
+The
+first
+member
+of
+the
+container,
+i.e.
+the
+value
+of
+the
+<code>
+<a href="#ch_containermembershipproperty">
+rdf:_1
+</a>
+</code>
+property,
+is
+the
+default
+choice.
+</p>
+</section>
+<section id="ch_containermembershipproperty" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_containermembershipproperty">
+<span class="secno">
+5.1.5
+</span>
+rdfs:ContainerMembershipProperty
+</h4>
+<p>
+The
+<code>
+rdfs:ContainerMembershipProperty
+</code>
+class
+has
+as
+instances
+the
+properties
+<code>
+rdf:_1,
+rdf:_2,
+rdf:_3
+...
+</code>
+that
+are
+used
+to
+state
+that
+a
+resource
+is
+a
+member
+of
+a
+container.
+<code>
+rdfs:ContainerMembershipProperty
+</code>
+is
+a
+<a href="#def-subclass">
+subclass
+</a>
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>.
+Each
+instance
+of
+<code>
+rdfs:ContainerMembershipProperty
+</code>
+is
+an
+<a href="#ch_subpropertyof">
+<code>
+rdfs:subPropertyOf
+</code>
+</a>
+the
+<code>
+<a href="#ch_member">
+rdfs:member
+</a>
+</code>
+property.
+</p>
+<p>
+Given
+a
+container
+C,
+a
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+C
+rdf:_nnn
+O
+</code>
+</blockquote>
+<p>
+where
+<code>
+nnn
+</code>
+is
+the
+decimal
+representation
+of
+an
+integer
+greater
+than
+0
+with
+no
+leading
+zeros,
+states
+that
+O
+is
+a
+member
+of
+the
+container
+C.
+</p>
+<p>
+Container
+membership
+properties
+may
+be
+applied
+to
+resources
+other
+than
+containers.
+</p>
+</section>
+<section id="ch_member" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_member">
+<span class="secno">
+5.1.6
+</span>
+rdfs:member
+</h4>
+<p>
+<code>
+rdfs:member
+</code>
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+that
+is
+a
+super-property
+of
+all
+the
+container
+membership
+properties
+i.e.
+each
+container
+membership
+property
+has
+an
+<a href="#ch_subpropertyof">
+<code>
+rdfs:subPropertyOf
+</code>
+</a>
+relationship
+to
+the
+property
+<code>
+rdfs:member
+</code>.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdfs:member
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdfs:member
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+</section>
+<section class="informative" id="ch_collectionvocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_collectionvocab">
+<span class="secno">
+5.2
+</span>
+RDF
+Collections
+</h3>
+<p>
+<em>
+<ins class="diff-new">This
+section
+is
+non-normative.
+</ins></em></p><p>
+RDF
+containers
+are
+open
+in
+the
+sense
+that
+the
+core
+RDF
+specifications
+define
+no
+mechanism
+to
+state
+that
+there
+are
+no
+more
+members.
+The
+RDF
+Collection
+vocabulary
+of
+classes
+and
+properties
+can
+describe
+a
+closed
+collection,
+i.e.
+one
+that
+can
+have
+no
+more
+members.
+<del class="diff-old">The
+reader
+is
+referred
+to
+the
+collections
+section
+of
+the
+RDF
+primer
+for
+an
+informal
+introduction
+to
+collections
+with
+examples.
+</del>
+</p>
+<p>
+A
+collection
+is
+represented
+as
+a
+list
+of
+items,
+a
+representation
+that
+will
+be
+familiar
+to
+those
+with
+experience
+of
+Lisp
+and
+similar
+programming
+languages.
+There
+is
+a
+<a href="http://www.w3.org/TR/turtle/#collections">
+shorthand
+notation
+</a>
+in
+the
+<del class="diff-old">RDF/XML
+</del>
+<ins class="diff-chg">Turtle
+</ins>
+syntax
+specification
+<del class="diff-old">[
+RDF-SYNTAX
+]
+</del>
+for
+representing
+collections.
+</p>
+<div class="note">
+<div class="note-title" aria-level="3" role="heading" id="h_note_2">
+<span>
+Note
+<del class="diff-old">:
+</del>
+</span>
+</div>
+<p class="">
+RDFS
+does
+not
+require
+that
+there
+be
+only
+one
+first
+element
+of
+a
+list-like
+structure,
+or
+even
+that
+a
+list-like
+structure
+have
+a
+first
+element.
+</p>
+</div>
+<section id="ch_list" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_list">
+<span class="secno">
+5.2.1
+</span>
+rdf:List
+</h4>
+<p>
+<code>
+rdf:List
+</code>
+is
+an
+instance
+of
+<a href="#ch_class">
+<code>
+rdfs:Class
+</code>
+</a>
+that
+can
+be
+used
+to
+build
+descriptions
+of
+lists
+and
+other
+list-like
+structures.
+</p>
+</section>
+<section id="ch_first" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_first">
+<span class="secno">
+5.2.2
+</span>
+rdf:first
+</h4>
+<p>
+<code>
+rdf:first
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+can
+be
+used
+to
+build
+descriptions
+of
+lists
+and
+other
+list-like
+structures.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+L
+rdf:first
+O
+</code>
+</blockquote>
+<p>
+states
+that
+there
+is
+a
+first-element
+relationship
+between
+L
+and
+O.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdf:first
+</code>
+is
+<code>
+<a href="#ch_list">
+rdf:List
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdf:first
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_rest" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_rest">
+<span class="secno">
+5.2.3
+</span>
+rdf:rest
+</h4>
+<p>
+<code>
+rdf:rest
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+can
+be
+used
+to
+build
+descriptions
+of
+lists
+and
+other
+list-like
+structures.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+L
+rdf:rest
+O
+</code>
+</blockquote>
+<p>
+states
+that
+there
+is
+a
+rest-of-list
+relationship
+between
+L
+and
+O.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdf:rest
+</code>
+is
+<code>
+<a href="#ch_list">
+rdf:List
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdf:rest
+</code>
+is
+<code>
+<a href="#ch_list">
+rdf:List
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_nil" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_nil">
+<span class="secno">
+5.2.4
+</span>
+rdf:nil
+</h4>
+<p>
+The
+resource
+<code>
+rdf:nil
+</code>
+is
+an
+instance
+of
+<code>
+<a href="#ch_list">
+rdf:List
+</a>
+</code>
+that
+can
+be
+used
+to
+represent
+an
+empty
+list
+or
+other
+list-like
+structure.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+L
+rdf:rest
+rdf:nil
+</code>
+</blockquote>
+<p>
+states
+that
+L
+is
+an
+instance
+of
+<code>
+<a href="#ch_list">
+rdf:List
+</a>
+</code>
+that
+has
+one
+item;
+that
+item
+can
+be
+indicated
+using
+the
+<code>
+<a href="#ch_first">
+rdf:first
+</a>
+</code>
+property.
+</p>
+</section>
+</section>
+<section class="informative" id="ch_reificationvocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<ins class="diff-chg">&gt;
+</ins><h3 aria-level="2" role="heading" id="h3_ch_reificationvocab">
+<span class="secno">
+5.3
+</span>
+Reification
+Vocabulary
+</h3>
+<p>
+<del class="diff-old">The
+original
+RDF
+Model
+and
+Syntax
+Specification
+[
+RDFMS
+]
+defined
+a
+vocabulary
+for
+describing
+RDF
+statements
+without
+stating
+them.
+[
+RDFMS
+]
+did
+not
+provide
+a
+formal
+semantics
+for
+this
+vocabulary,
+and
+the
+informal
+definition
+that
+was
+provided
+was
+somewhat
+inconsistent.
+The
+current
+RDF
+specification
+does
+not
+assign
+a
+normative
+formal
+semantics
+to
+this
+vocabulary.
+However,
+an
+intended
+meaning
+of
+this
+vocabulary
+(which
+generally
+clarifies
+the
+intent
+of
+the
+[
+RDFMS
+]
+definition)
+</del>
+<em>
+<ins class="diff-chg">This
+section
+</ins>
+is
+<del class="diff-old">described
+here.
+An
+informal
+introduction
+to
+the
+reification
+vocabulary,
+with
+examples,
+may
+be
+found
+in
+the
+RDF
+Primer
+[
+RDF-PRIMER
+].
+</del>
+<ins class="diff-chg">non-normative.
+</ins></em>
+</p>
+<section id="ch_statement" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_statement">
+<span class="secno">
+5.3.1
+</span>
+rdf:Statement
+</h4>
+<p>
+<code>
+rdf:Statement
+</code>
+is
+an
+instance
+of
+<code>
+<a href="#ch_class">
+rdfs:Class.
+</a>
+</code>
+It
+is
+intended
+to
+represent
+the
+class
+of
+RDF
+statements.
+An
+RDF
+statement
+is
+the
+statement
+made
+by
+a
+token
+of
+an
+RDF
+<del class="diff-old">triple
+.
+</del>
+<ins class="diff-chg">triple.
+</ins>
+The
+subject
+of
+an
+RDF
+statement
+is
+the
+instance
+of
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>
+identified
+by
+the
+subject
+of
+the
+triple.
+The
+predicate
+of
+an
+RDF
+statement
+is
+the
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+identified
+by
+the
+predicate
+of
+the
+triple.
+The
+object
+of
+an
+RDF
+statement
+is
+the
+instance
+of
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>
+identified
+by
+the
+object
+of
+the
+triple.
+<code>
+rdf:Statement
+</code>
+is
+in
+the
+domain
+of
+the
+properties
+<code>
+<a href="#ch_predicate">
+rdf:predicate
+</a>
+</code>,
+<code>
+<a href="#ch_subject">
+rdf:subject
+</a>
+</code>
+and
+<code>
+<a href="#ch_object">
+rdf:object
+</a>
+</code>.
+Different
+individual
+<code>
+rdf:Statement
+</code>
+instances
+may
+have
+the
+same
+values
+for
+their
+<code>
+<a href= "#ch_predicate">
+rdf:predicate
+</a>
+</code>,
+<code>
+<a href="#ch_subject">
+rdf:subject
+</a>
+</code>
+and
+<code>
+<a href="#ch_object">
+rdf:object
+</a>
+</code>
+properties.
+</p>
+</section>
+<section id="ch_subject" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_subject">
+<span class="secno">
+5.3.2
+</span>
+rdf:subject
+</h4>
+<p>
+<code>
+rdf:subject
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+state
+the
+subject
+of
+a
+statement.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+S
+rdf:subject
+R
+</code>
+</blockquote>
+<p>
+states
+that
+S
+is
+an
+instance
+of
+<code>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</code>
+and
+that
+the
+subject
+of
+S
+is
+R.
+</p>
+<p class="schemacomment">
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdf:subject
+</code>
+is
+<code>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdf:subject
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_predicate" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_predicate">
+<span class="secno">
+5.3.3
+</span>
+rdf:predicate
+</h4>
+<p>
+rdf:predicate
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+state
+the
+predicate
+of
+a
+statement.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+S
+rdf:predicate
+P
+</code>
+</blockquote>
+<p>
+states
+that
+S
+is
+an
+instance
+of
+<code>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</code>,
+that
+P
+is
+an
+instance
+of
+<code>
+<a href="#ch_property">
+rdf:Property
+</a>
+</code>
+and
+that
+the
+predicate
+of
+S
+is
+P.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdf:predicate
+</code>
+is
+<code>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</code>
+and
+the
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+is
+<a href="#ch_resource">
+<code>
+rdfs:Resource
+</code>
+</a>.
+</p>
+</section>
+<section id="ch_object" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_object">
+<span class="secno">
+5.3.4
+</span>
+rdf:object
+</h4>
+<p>
+rdf:object
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+state
+the
+object
+of
+a
+statement.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+S
+rdf:object
+O
+</code>
+</blockquote>
+<p>
+states
+that
+S
+is
+an
+instance
+of
+<code>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</code>
+and
+that
+the
+object
+of
+S
+is
+O.
+</p>
+<p>
+The
+<a href="#ch_domain">
+<code>
+rdfs:domain
+</code>
+</a>
+of
+<code>
+rdf:object
+</code>
+is
+<code>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</code>.
+The
+<a href="#ch_range">
+<code>
+rdfs:range
+</code>
+</a>
+of
+<code>
+rdf:object
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+</section>
+<section id="ch_utilvocab" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_utilvocab">
+<span class="secno">
+5.4
+</span>
+Utility
+Properties
+</h3>
+<p>
+The
+following
+utility
+classes
+and
+properties
+are
+defined
+in
+the
+RDF
+core
+namespaces.
+</p>
+<section id="ch_seealso" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_seealso">
+<span class="secno">
+5.4.1
+</span>
+rdfs:seeAlso
+</h4>
+<p>
+<code>
+rdfs:seeAlso
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+indicate
+a
+resource
+that
+might
+provide
+additional
+information
+about
+the
+subject
+resource.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+S
+rdfs:seeAlso
+O
+</code>
+</blockquote>
+<p>
+states
+that
+the
+resource
+O
+may
+provide
+additional
+information
+about
+S.
+It
+may
+be
+possible
+to
+retrieve
+representations
+of
+O
+from
+the
+Web,
+but
+this
+is
+not
+required.
+When
+such
+representations
+may
+be
+retrieved,
+no
+constraints
+are
+placed
+on
+the
+format
+of
+those
+representations.
+</p>
+<p>
+The
+<code>
+<a href="#ch_domain">
+rdfs:domain
+</a>
+</code>
+of
+<code>
+rdfs:seeAlso
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+The
+<code>
+<a href="#ch_range">
+rdfs:range
+</a>
+</code>
+of
+<code>
+rdfs:seeAlso
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_isdefinedby" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_isdefinedby">
+<span class="secno">
+5.4.2
+</span>
+rdfs:isDefinedBy
+</h4>
+<p>
+<code>
+rdfs:isDefinedBy
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+is
+used
+to
+indicate
+a
+resource
+defining
+the
+subject
+resource.
+This
+property
+may
+be
+used
+to
+indicate
+an
+RDF
+vocabulary
+in
+which
+a
+resource
+is
+described.
+</p>
+<p>
+A
+triple
+of
+the
+form:
+</p>
+<blockquote>
+<code>
+S
+rdfs:isDefinedBy
+O
+</code>
+</blockquote>
+<p>
+states
+that
+the
+resource
+O
+defines
+S.
+It
+may
+be
+possible
+to
+retrieve
+representations
+of
+O
+from
+the
+Web,
+but
+this
+is
+not
+required.
+When
+such
+representations
+may
+be
+retrieved,
+no
+constraints
+are
+placed
+on
+the
+format
+of
+those
+representations.
+<code>
+rdfs:isDefinedBy
+</code>
+is
+a
+<a href="#def-subproperty">
+subproperty
+</a>
+of
+<code>
+<a href="#ch_seealso">
+rdfs:seeAlso
+</a>
+</code>.
+</p>
+<p>
+The
+<code>
+<a href="#ch_domain">
+rdfs:domain
+</a>
+</code>
+of
+<code>
+rdfs:isDefinedBy
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+The
+<code>
+<a href="#ch_range">
+rdfs:range
+</a>
+</code>
+of
+<code>
+rdfs:isDefinedBy
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+<section id="ch_value" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h4 aria-level="3" role="heading" id="h4_ch_value">
+<span class="secno">
+5.4.3
+</span>
+rdf:value
+</h4>
+<p>
+<code>
+rdf:value
+</code>
+is
+an
+instance
+of
+<a href="#ch_property">
+<code>
+rdf:Property
+</code>
+</a>
+that
+may
+be
+used
+in
+describing
+structured
+values.
+</p>
+<p>
+rdf:value
+has
+no
+meaning
+on
+its
+own.
+It
+is
+provided
+as
+a
+piece
+of
+vocabulary
+that
+may
+be
+used
+in
+idioms
+such
+as
+illustrated
+in
+example
+<del class="diff-old">16
+of
+the
+RDF
+primer
+[
+RDF-PRIMER
+].
+</del>
+<ins class="diff-chg">below:
+</ins></p><div class="example"><div class="example-title"><span><ins class="diff-chg">
+Example
+1
+</ins></span></div><pre class="example"><ins class="diff-chg">
+&lt;http://www.example.com/2002/04/products#item10245&gt;
+    &lt;http://www.example.org/terms/weight&gt; [
+       rdf:value 2.4 ;
+       &lt;http://www.example.org/terms/units&gt; &lt;http://www.example.org/units/kilograms&gt;
+       ] .
+</ins></pre></div><p>
+Despite
+the
+lack
+of
+formal
+specification
+of
+the
+meaning
+of
+this
+property,
+there
+is
+value
+in
+defining
+it
+to
+encourage
+the
+use
+of
+a
+common
+idiom
+in
+examples
+of
+this
+kind.
+</p>
+<p>
+The
+<code>
+<a href="#ch_domain">
+rdfs:domain
+</a>
+</code>
+of
+<code>
+rdf:value
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+The
+<code>
+<a href="#ch_range">
+rdfs:range
+</a>
+</code>
+of
+<code>
+rdf:value
+</code>
+is
+<code>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</code>.
+</p>
+</section>
+</section>
+</section>
+<section id="ch_summary" class="informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_summary">
+<span class="secno">
+6.
+</span>
+RDF
+Schema
+summary
+<del class="diff-old">(Informative)
+</del>
+</h2>
+<p>
+<em>
+This
+<del class="diff-old">table
+presents
+</del>
+<ins class="diff-chg">section
+is
+non-normative.
+</ins></em></p><p><ins class="diff-chg">
+The
+tables
+in
+this
+section
+provide
+</ins>
+an
+overview
+of
+the
+<del class="diff-old">vocabulary
+of
+RDF,
+drawing
+together
+vocabulary
+originally
+defined
+in
+the
+RDF
+Model
+and
+Syntax
+specification
+with
+classes
+and
+properties
+that
+originate
+with
+</del>
+RDF
+<del class="diff-old">Schema.
+</del>
+<ins class="diff-chg">Schema
+vocabulary.
+</ins>
+</p>
+<section id="ch_sumclasses" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_sumclasses">
+<span class="secno">
+6.1
+</span>
+RDF
+classes
+</h3>
+<table border="1">
+<tbody>
+<tr>
+<th>
+Class
+name
+</th>
+<th>
+comment
+</th>
+</tr>
+<tr>
+<td>
+<a href="#ch_resource">
+rdfs:Resource
+</a>
+</td>
+<td>
+The
+class
+resource,
+everything.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_literal">
+rdfs:Literal
+</a>
+</td>
+<td>
+The
+class
+of
+literal
+values,
+e.g.
+textual
+strings
+and
+integers.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_langstring">
+<ins class="diff-new">rdf:langString
+</ins></a></td><td><ins class="diff-new">
+The
+class
+of
+language-tagged
+string
+literal
+values.
+</ins></td></tr><tr><td><a href="#ch_html"><ins class="diff-new">
+rdf:HTML
+</ins></a></td><td><ins class="diff-new">
+The
+class
+of
+HTML
+literal
+values.
+</ins></td></tr><tr><td><a href="#ch_xmlliteral">
+rdf:XMLLiteral
+</a>
+</td>
+<td>
+The
+class
+of
+XML
+<del class="diff-old">literals
+</del>
+<ins class="diff-chg">literal
+</ins>
+values.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_class">
+rdfs:Class
+</a>
+</td>
+<td>
+The
+class
+of
+classes.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_property">
+rdf:Property
+</a>
+</td>
+<td>
+The
+class
+of
+RDF
+properties.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_datatype">
+rdfs:Datatype
+</a>
+</td>
+<td>
+The
+class
+of
+RDF
+datatypes.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_statement">
+rdf:Statement
+</a>
+</td>
+<td>
+The
+class
+of
+RDF
+statements.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_bag">
+rdf:Bag
+</a>
+</td>
+<td>
+The
+class
+of
+unordered
+containers.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_seq">
+rdf:Seq
+</a>
+</td>
+<td>
+The
+class
+of
+ordered
+containers.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_alt">
+rdf:Alt
+</a>
+</td>
+<td>
+The
+class
+of
+containers
+of
+alternatives.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_container">
+rdfs:Container
+</a>
+</td>
+<td>
+The
+class
+of
+RDF
+containers.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_containermembershipproperty">
+rdfs:ContainerMembershipProperty
+</a>
+</td>
+<td>
+The
+class
+of
+container
+membership
+properties,
+rdf:_1,
+rdf:_2,
+...,
+all
+of
+which
+are
+sub-properties
+of
+'member'.
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_list">
+rdf:List
+</a>
+</td>
+<td>
+The
+class
+of
+RDF
+Lists.
+</td>
+</tr>
+</tbody>
+</table>
+</section>
+<section id="ch_sumproperties" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_ch_sumproperties">
+<span class="secno">
+6.2
+</span>
+RDF
+properties
+</h3>
+<table border="1">
+<tbody>
+<tr>
+<th>
+Property
+name
+</th>
+<th>
+comment
+</th>
+<th>
+domain
+</th>
+<th>
+range
+</th>
+</tr>
+<tr>
+<td>
+<a href="#ch_type">
+rdf:type
+</a>
+</td>
+<td>
+The
+subject
+is
+an
+instance
+of
+a
+class.
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Class
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_subclassof">
+rdfs:subClassOf
+</a>
+</td>
+<td>
+The
+subject
+is
+a
+subclass
+of
+a
+class.
+</td>
+<td>
+rdfs:Class
+</td>
+<td>
+rdfs:Class
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_subpropertyof">
+rdfs:subPropertyOf
+</a>
+</td>
+<td>
+The
+subject
+is
+a
+subproperty
+of
+a
+property.
+</td>
+<td>
+rdf:Property
+</td>
+<td>
+rdf:Property
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_domain">
+rdfs:domain
+</a>
+</td>
+<td>
+A
+domain
+of
+the
+subject
+property.
+</td>
+<td>
+rdf:Property
+</td>
+<td>
+rdfs:Class
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_range">
+rdfs:range
+</a>
+</td>
+<td>
+A
+range
+of
+the
+subject
+property.
+</td>
+<td>
+rdf:Property
+</td>
+<td>
+rdfs:Class
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_label">
+rdfs:label
+</a>
+</td>
+<td>
+A
+human-readable
+name
+for
+the
+subject.
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Literal
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_comment">
+rdfs:comment
+</a>
+</td>
+<td>
+A
+description
+of
+the
+subject
+resource.
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Literal
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_member">
+rdfs:member
+</a>
+</td>
+<td>
+A
+member
+of
+the
+subject
+resource.
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_first">
+rdf:first
+</a>
+</td>
+<td>
+The
+first
+item
+in
+the
+subject
+RDF
+list.
+</td>
+<td>
+rdf:List
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_rest">
+rdf:rest
+</a>
+</td>
+<td>
+The
+rest
+of
+the
+subject
+RDF
+list
+after
+the
+first
+item.
+</td>
+<td>
+rdf:List
+</td>
+<td>
+rdf:List
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_seealso">
+rdfs:seeAlso
+</a>
+</td>
+<td>
+Further
+information
+about
+the
+subject
+resource.
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_isdefinedby">
+rdfs:isDefinedBy
+</a>
+</td>
+<td>
+The
+definition
+of
+the
+subject
+resource.
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_value">
+rdf:value
+</a>
+</td>
+<td>
+Idiomatic
+property
+used
+for
+structured
+<del class="diff-old">values
+(see
+the
+RDF
+Primer
+for
+an
+example
+of
+its
+usage).
+</del>
+<ins class="diff-chg">values.
+</ins>
+</td>
+<td>
+rdfs:Resource
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_subject">
+rdf:subject
+</a>
+</td>
+<td>
+The
+subject
+of
+the
+subject
+RDF
+statement.
+</td>
+<td>
+rdf:Statement
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_predicate">
+rdf:predicate
+</a>
+</td>
+<td>
+The
+predicate
+of
+the
+subject
+RDF
+statement.
+</td>
+<td>
+rdf:Statement
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+<tr>
+<td>
+<a href="#ch_object">
+rdf:object
+</a>
+</td>
+<td>
+The
+object
+of
+the
+subject
+RDF
+statement.
+</td>
+<td>
+rdf:Statement
+</td>
+<td>
+rdfs:Resource
+</td>
+</tr>
+</tbody>
+</table>
+<p>
+In
+addition
+to
+these
+classes
+and
+properties,
+RDF
+also
+uses
+properties
+called
+<code>
+rdf:_1
+</code>,
+<code>
+rdf:_2
+</code>,
+<code>
+rdf:_3
+</code>...
+etc.,
+each
+of
+which
+is
+both
+a
+sub-property
+of
+<code>
+rdfs:member
+</code>
+and
+an
+instance
+of
+the
+class
+<code>
+rdfs:ContainerMembershipProperty
+</code>.
+There
+is
+also
+an
+instance
+of
+<code>
+rdf:List
+</code>
+called
+<code>
+rdf:nil
+</code>
+that
+is
+an
+empty
+<code>
+rdf:List
+</code>.
+</p>
+</section>
+</section>
+<section id="ch_acknowledgements" class="appendix informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_ch_acknowledgements">
+<del class="diff-old">7.
+References
+</del>
+<span class="secno">
+<ins class="diff-chg">A.
+</ins></span><ins class="diff-chg">
+Acknowledgments
+</ins>
+</h2>
+<del class="diff-old">7.1
+Normative
+References
+[RDF-CONCEPTS]
+Resource
+Description
+Framework
+(RDF):
+Concepts
+and
+Abstract
+Syntax
+,
+Graham
+Klyne
+and
+Jeremy
+J.
+Carroll,
+Editors,
+W3C
+Recommendation,
+10
+February
+2004,
+http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/
+.
+Latest
+version
+available
+at
+http://www.w3.org/TR/rdf-concepts/
+.
+[RDF-SEMANTICS]
+RDF
+Semantics
+,
+Patrick
+Hayes,
+Editor,
+W3C
+Recommendation,
+10
+February
+2004,
+http://www.w3.org/TR/2004/REC-rdf-mt-20040210/
+.
+Latest
+version
+available
+at
+http://www.w3.org/TR/rdf-mt/
+.
+[RDF-SYNTAX]
+RDF/XML
+Syntax
+Specification
+(Revised)
+,
+Dave
+Beckett,
+Editor,
+W3C
+Recommendation,
+10
+February
+2004,
+http://www.w3.org/TR/2004/REC-rdf-syntax-grammar-20040210/
+.
+Latest
+version
+available
+at
+http://www.w3.org/TR/rdf-syntax-grammar/
+.
+[RDF-TESTS]
+RDF
+Test
+Cases
+,
+Jan
+Grant
+and
+Dave
+Beckett,
+Editors,
+W3C
+Recommendation,
+10
+February
+2004,
+http://www.w3.org/TR/2004/REC-rdf-testcases-20040210/
+.
+Latest
+version
+available
+at
+http://www.w3.org/TR/rdf-testcases/
+.
+[RDFMS]
+Resource
+Description
+Framework
+(RDF)
+Model
+and
+Syntax
+,
+W3C
+Recommendation,
+22
+February
+1999
+http://www.w3.org/TR/1999/REC-rdf-syntax-19990222/
+[XMLNS]
+Namespaces
+in
+XML
+;
+W3C
+Recommendation,
+14
+January
+1999
+http://www.w3.org/TR/1999/REC-xml-names-19990114/
+7.2
+Informational
+References
+[RDF-PRIMER]
+RDF
+Primer
+,
+Frank
+Manola
+and
+Eric
+Miller,
+Editors,
+W3C
+Recommendation,
+10
+February
+2004,
+http://www.w3.org/TR/2004/REC-rdf-primer-20040210/
+.
+Latest
+version
+available
+at
+http://www.w3.org/TR/rdf-primer/
+.
+[BERNERS-LEE98]
+What
+the
+Semantic
+Web
+can
+represent
+,
+Tim
+Berners-Lee,
+1998
+http://www.w3.org/DesignIssues/RDFnot.html
+[EXTWEB]
+Web
+Architecture:
+Extensible
+Languages
+,
+Tim
+Berners-Lee
+and
+Dan
+Connolly,
+1998
+http://www.w3.org/TR/1998/NOTE-webarch-extlang-19980210
+[DCMI]
+Dublin
+Core
+Metadata
+Initiative
+http://www.dublincore.org/
+[OWL]
+OWL
+Web
+Ontology
+Language
+Reference
+,
+Mike
+Dean
+and
+Guus
+Schreiber,
+Editors,
+W3C
+Recommendation,
+10
+February
+2004,
+http://www.w3.org/TR/2004/REC-owl-ref-20040210/
+.
+Latest
+version
+available
+at
+http://www.w3.org/TR/owl-ref/
+.
+[SCHEMA-ARCH]
+The
+Cambridge
+Communiqué
+,
+W3C
+NOTE,
+7
+October
+1999,
+Swick
+and
+Thompson
+http://www.w3.org/TR/1999/NOTE-schema-arch-19991007
+[XML]
+Extensible
+Markup
+Language
+(XML)
+1.0
+,
+W3C
+Recommendation,
+10-February-1988,
+Section
+3.2
+Element
+Type
+Declarations
+http://www.w3.org/TR/1998/REC-xml-19980210.html#elemdecls
+</del>
+<p>
+<em>
+<ins class="diff-chg">This
+section
+is
+non-normative.
+</ins></em>
+<del class="diff-old">8.
+Acknowledgments
+</del>
+</p>
+<p>
+The
+RDF
+Schema
+design
+was
+originally
+produced
+by
+the
+RDF
+Schema
+Working
+Group
+(1997-2000).
+The
+current
+specification
+is
+largely
+an
+editorial
+clarification
+of
+that
+design,
+and
+has
+benefited
+greatly
+from
+the
+hard
+work
+of
+the
+<a href="http://www.w3.org/2001/sw/RDFCore/">
+RDF
+Core
+Working
+Group
+</a>
+<a href="http://www.w3.org/2001/sw/RDFCore/#Membership">
+members
+</a>,
+and
+from
+implementation
+feedback
+from
+many
+members
+of
+the
+<a href="http://www.w3.org/RDF/Interest/">
+RDF
+Interest
+Group
+</a>.
+<ins class="diff-new">In
+2013-2014
+Guus
+Schreiber
+edited
+this
+document
+on
+behalf
+of
+the
+</ins><a href="http://www.w3.org/2011/rdf-wg/"><ins class="diff-new">
+RDF
+Working
+Group
+</ins></a><ins class="diff-new">
+to
+bring
+it
+in
+line
+with
+the
+RDF
+1.1
+specifications.
+</ins>
+</p>
+<p>
+David
+Singer
+of
+IBM
+was
+the
+chair
+of
+the
+original
+RDF
+Schema
+group
+throughout
+most
+of
+the
+development
+of
+this
+specification;
+we
+thank
+David
+for
+his
+efforts
+and
+thank
+IBM
+for
+supporting
+him
+and
+us
+in
+this
+endeavor.
+Particular
+thanks
+are
+also
+due
+to
+Andrew
+Layman
+for
+his
+editorial
+work
+on
+early
+versions
+of
+this
+specification.
+</p>
+<p>
+The
+original
+RDF
+Schema
+Working
+Group
+membership
+included:
+</p>
+<p>
+Nick
+Arnett
+(Verity),
+Dan
+Brickley
+(ILRT
+/
+University
+of
+Bristol),
+Walter
+Chang
+(Adobe),
+Sailesh
+Chutani
+(Oracle),
+Ron
+Daniel
+(DATAFUSION),
+Charles
+Frankston
+(Microsoft),
+Joe
+Lapp
+(webMethods
+Inc.),
+Patrick
+Gannon
+(CommerceNet),
+RV
+Guha
+(Epinions,
+previously
+of
+Netscape
+Communications),
+Tom
+Hill
+(Apple
+Computer),
+Renato
+Iannella
+(DSTC),
+Sandeep
+Jain
+(Oracle),
+Kevin
+Jones,
+(InterMind),
+Emiko
+Kezuka
+(Digital
+Vision
+Laboratories),
+Ora
+Lassila
+(Nokia
+Research
+Center),
+Andrew
+Layman
+(Microsoft),
+John
+McCarthy
+(Lawrence
+Berkeley
+National
+Laboratory),
+Michael
+Mealling
+(Network
+Solutions),
+Norbert
+Mikula
+(DataChannel),
+Eric
+Miller
+(OCLC),
+Frank
+Olken
+(Lawrence
+Berkeley
+National
+Laboratory),
+Sri
+Raghavan
+(Digital/Compaq),
+Lisa
+Rein
+(webMethods
+Inc.),
+Tsuyoshi
+Sakata
+(Digital
+Vision
+Laboratories),
+Leon
+Shklar
+(Pencom
+Web
+Works),
+David
+Singer
+(IBM),
+Wei
+(William)
+Song
+(SISU),
+Neel
+Sundaresan
+(IBM),
+Ralph
+Swick
+<del class="diff-old">(W3C),
+</del>
+<ins class="diff-chg">(
+</ins><abbr title="World Wide Web Consortium"><ins class="diff-chg">
+W3C
+</ins></abbr><ins class="diff-chg">
+),
+</ins>
+Naohiko
+Uramoto
+(IBM),
+Charles
+Wicksteed
+(Reuters
+Ltd.),
+Misha
+Wolf
+(Reuters
+Ltd.)
+</p>
+</section>
+<section id="changes" class="appendix informative" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h2 aria-level="1" role="heading" id="h2_changes">
+<span class="secno">
+<ins class="diff-chg">B.
+</ins></span><ins class="diff-chg">
+Change
+history
+</ins></h2><p>
+<em>
+<ins class="diff-chg">This
+section
+is
+non-normative.
+</ins></em>
+</p>
+<section id="PER-changes" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter">
+<h3 aria-level="2" role="heading" id="h3_PER-changes">
+<span class="secno">
+<ins class="diff-chg">B.1
+</ins></span><ins class="diff-chg">
+Changes
+for
+Proposed
+Edited
+Recommendation
+in
+2013
+</ins></h3><ul><li><ins class="diff-chg">
+Conversion
+to
+ResPec,
+inclduing
+formatting
+of
+examples
+and
+notes.
+</ins></li><li><ins class="diff-chg">
+Refereces
+and
+anchors
+to
+RDF
+1.0
+documents
+where
+appropriate
+replaced
+by
+references
+and
+anchors
+to
+RDF
+1.1
+documents.
+</ins></li><li><ins class="diff-chg">
+Replaced
+the
+term
+"URI
+Reference"
+with
+the
+term
+"IRI".
+</ins></li><li><ins class="diff-chg">
+Removed
+discussion
+about
+distinction
+between
+plain
+and
+typed
+literals,
+as
+this
+distinction
+is
+absent
+in
+RDF
+1.1
+and
+has
+no
+technical
+bearing
+on
+RDF
+Schema.
+</ins></li><li><ins class="diff-chg">
+Fixed
+incorrect
+pointer
+to
+RDF
+Primer
+example
+16
+to
+example
+21.
+</ins></li><li><ins class="diff-chg">
+Removed
+the
+introductory
+paragraph
+of
+Sec.
+</ins><a href="#ch_reificationvocab"><ins class="diff-chg">
+"Reification
+Vocabulary"
+</ins></a>,<ins class="diff-chg">
+as
+this
+discussion
+is
+not
+related
+to
+the
+technical
+content
+and
+is
+irrelevant
+and
+confusing
+now.
+</ins></li><li><ins class="diff-chg">
+Update
+of
+affiliation
+of
+the
+editors.
+</ins></li><li><ins class="diff-chg">
+Added
+RDF
+WG
+to
+the
+Acknowledgements
+section.
+</ins></li><li><ins class="diff-chg">
+Renamed
+the
+document
+from
+"RDF
+Vocabulary
+Description
+Language
+1.0:
+RDF
+Schema"
+to
+"RDF
+Schema
+1.1",
+as
+the
+term
+Vocabulary
+Description
+Language
+has
+led
+to
+confusion.
+</ins></li><li><ins class="diff-chg">
+Three
+paragraphs
+of
+the
+Introduction
+were
+left
+out.
+These
+paragraphs
+described
+the
+things
+that
+RDF
+Schema
+does
+not
+do
+and
+are
+now
+much
+less
+relevant
+than
+in
+2004.
+</ins></li><li><ins class="diff-chg">
+Added
+the
+datatypes
+</ins><code><ins class="diff-chg">
+rdf:langString
+</ins></code><ins class="diff-chg">
+and
+</ins><code><ins class="diff-chg">
+rdf:HTML
+</ins></code>.</li><li><ins class="diff-chg">
+Removed
+Appendix
+"RDF
+Schema
+in
+RDF/XML".
+It
+was
+informative,
+but
+now
+out
+of
+date,
+in
+terms
+of
+content
+and
+in
+terms
+of
+syntax.
+</ins></li><li><ins class="diff-chg">
+Marked
+</ins><code><ins class="diff-chg">
+rdf:HTML
+</ins></code><ins class="diff-chg">
+and
+</ins><code><ins class="diff-chg">
+rdf:XMLLiteral
+</ins></code><ins class="diff-chg">
+as
+non-normative.
+</ins></li><li><ins class="diff-chg">
+Removed
+references
+to
+2004
+Primer
+from
+Secs.
+5.1,
+5.2
+and
+5.4.3.
+In
+the
+latter
+case
+the
+example
+referred
+to
+was
+moved
+into
+this
+document
+for
+readability
+purposes.
+</ins></li></ul></section><section id="2004-changes" typeof="bibo:Chapter" resource="#ref" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_2004-changes">
+<span class="secno">
+<ins class="diff-chg">B.2
+</ins></span>
+Changes
+<ins class="diff-chg">history
+of
+the
+2004
+Recommendation
+</ins></h3>
+<p>
+The
+following
+is
+an
+outline
+of
+the
+main
+changes
+made
+to
+<del class="diff-old">this
+</del>
+<ins class="diff-chg">the
+2004
+</ins>
+specification,
+latest
+first,
+since
+the
+Last
+Call
+Working
+Draft
+of
+<a href="http://www.w3.org/TR/2003/WD-rdf-schema-20030123/">
+23
+January
+2003
+</a>.
+See
+the
+<a href="http://www.w3.org/2001/sw/RDFCore/20030123-issues/#schema">
+Last
+Call
+issue
+tracking
+document
+</a>
+for
+details
+of
+the
+specific
+issues
+raised
+regarding
+this
+specification.
+</p>
+<ul>
+<li>
+Amended
+Appendix
+A
+to
+note
+that
+the
+RDF/XML
+description
+of
+RDF
+and
+RDFS
+terms
+is
+not
+directly
+published
+at
+the
+RDFS
+namespace,
+but
+split
+between
+the
+'rdf:'
+and
+'rdfs:'
+namespace
+documents.
+Also
+removed
+the
+pre-REC
+warning
+that
+the
+WG
+might
+choose
+to
+change
+the
+namespace
+URI
+prior
+to
+Recommendation.
+</li>
+<li>
+Amended
+rdfs:range
+specification
+for
+rdf:predicate
+for
+consistency
+with
+the
+Semantics
+document
+(previously
+rdf:Property;
+now,
+rdfs:Resource)
+</li>
+<li>
+Removed