--- a/rdf-concepts/index.html Tue Dec 17 17:14:48 2013 +0100
+++ b/rdf-concepts/index.html Tue Dec 17 18:22:43 2013 +0100
@@ -219,11 +219,10 @@
expressed in RDF</a> [[SWBP-N-ARYRELATIONS]].)</p>
<p>Unlike <a title="IRI">IRIs</a> and <a title="literal">literals</a>,
- <a title="blank node">blank nodes</a> do not denote specific
- <a title="resource">resources</a>.
- <a title="RDF statement">Statements</a> involving
- blank nodes say that something with the given
- relationships exists, without explicitly naming it.</p>
+ <a title="blank node">blank nodes</a> do not identify specific
+ <a title="resource">resources</a>. <a title="RDF statement">Statements</a>
+ involving blank nodes say that something with the given relationships
+ exists, without explicitly naming it.</p>
</section>
@@ -329,10 +328,8 @@
<section id="change-over-time">
<h2>RDF and Change Over Time</h2>
- <p>The RDF data model is <em>atemporal</em>: It does not deal with time,
- and does not have a built-in notion of temporal validity of information.
- <a title="RDF graph">RDF graphs</a> are static snapshots of
- information.</p>
+ <p>The RDF data model is <em>atemporal</em>: <a title="RDF graph">RDF graphs</a>
+ are static snapshots of information.</p>
<p>However, <a title="RDF graph">RDF graphs</a> can express information
about events and about temporal aspects of other entities,
@@ -794,39 +791,39 @@
<h2>RDF Datasets</h2>
<p>An <dfn>RDF dataset</dfn> is a collection of
- <a title="RDF graph">RDF graphs</a>, and comprises:</p>
+ <a title="RDF graph">RDF graphs</a>, and comprises:</p>
<ul>
- <li>Exactly one <dfn>default graph</dfn>, being an <a>RDF graph</a>.
- The default graph does not have a name and MAY be empty.</li>
- <li>Zero or more <dfn title="named graph">named graphs</dfn>.
- Each named graph is a pair consisting of an <a title="IRI">IRI</a> or a blank node
- (the <dfn>graph name</dfn>), and an <a>RDF graph</a>.
- Graph names are unique within an RDF dataset.</li>
+ <li>Exactly one <dfn>default graph</dfn>, being an <a>RDF graph</a>.
+ The default graph does not have a name and MAY be empty.</li>
+ <li>Zero or more <dfn title="named graph">named graphs</dfn>.
+ Each named graph is a pair consisting of an <a title="IRI">IRI</a> or a blank node
+ (the <dfn>graph name</dfn>), and an <a>RDF graph</a>.
+ Graph names are unique within an RDF dataset.</li>
</ul>
- <p><a title="blank node">Blank nodes</a> MAY be shared between graphs
- in an <a title="RDF Dataset">RDF dataset</a>.</p>
+ <p><a title="blank node">Blank nodes</a> can be be shared between graphs
+ in an <a title="RDF Dataset">RDF dataset</a>.</p>
<div class="note" id="note-datasets">
- <p>Despite the use of the word “name”
- in “<a>named graph</a>”, the <a>graph name</a> does not formally
- <a>denote</a> the graph. It is merely syntactically paired with
- the graph. RDF does not place any formal restrictions on what
- <a>resource</a> the graph name may denote, nor on the relationship between
- that resource and the graph.</p>
+ <p>Despite the use of the word “name” in “<a>named graph</a>”, the
+ <a>graph name</a> is not required to <a>denote</a> the graph. It is
+ merely syntactically paired with the graph. RDF does not place any
+ formal restrictions on what <a>resource</a> the graph name may denote,
+ nor on the relationship between that resource and the graph.
+ A discussion of different RDF dataset semantics can be found in
+ [[RDF11-DATASETS]].</p>
- <p>Some <a title="RDF Dataset">RDF dataset</a>
- implementations do not track empty <a title="named graph">named graphs</a>.
- Applications can avoid interoperability issues by not
- ascribing importance to the presence or absence of empty named graphs.</p>
+ <p>Some <a title="RDF Dataset">RDF dataset</a> implementations do not
+ track empty <a title="named graph">named graphs</a>. Applications
+ can avoid interoperability issues by not ascribing importance to
+ the presence or absence of empty named graphs.</p>
- <p>Blank nodes as graph names are new. Existing SPARQL implementations
- might not accept this new feature for some time, so the use of blank
- nodes as graph names can cause interoperability problems.
- <a href="#section-skolemization">Skolemizing</a> blank nodes used as
- graph names can be used to overcome these interoperability problems.</p>
-
+ <p>Blank nodes as graph names are new. Existing SPARQL implementations
+ might not accept this new feature for some time, so the use of blank
+ nodes as graph names can cause interoperability problems.
+ <a href="#section-skolemization">Skolemizing</a> blank nodes used as
+ graph names can be used to overcome these interoperability problems.</p>
</div>
<section id="section-dataset-isomorphism">
@@ -1349,6 +1346,8 @@
<a href="http://www.w3.org/TR/2013/CR-rdf11-concepts-20131105/">5 November 2013 Candidate Recommendation (CR)</a>.</p>
<ul>
+ <li>2013-12-17: Minor editorial changes in response to a review by
+ <a href="http://lists.w3.org/Archives/Public/public-rdf-wg/2013Dec/0225.html">Pat Hayes</a></li>
<li>2013-12-17: Update SPARQL reference in the introduction</li>
<li>2013-12-16: Minor editorial changes to <a href="#referents"></a> in response to a review by
<a href="http://lists.w3.org/Archives/Public/public-rdf-comments/2013Oct/0008.html">David Booth</a></li>