--- a/rdf-primer/index.html	Tue Nov 12 00:40:55 2013 +0100
+++ b/rdf-primer/index.html	Tue Nov 12 01:02:00 2013 +0100
@@ -276,7 +276,7 @@
 
     <section id="subsection-IRI">
 
-      <h3>IRI</h3>
+      <h3>IRIs</h3>
 
     <p>The abbreviation IRI is short for "International Resource
     Identifier".  An IRI identifies a Web resource. IRIs are
@@ -311,13 +311,13 @@
     IRIS may be given meaning by particular vocabularies or
     conventions. VIAF (see example above) is an example of such a vocabulry. RDF
     vocabularies are discussed in more detail in Sec. <a
-    href="#section-RDF-Schema">"RDF vocabularies"</a>. </p>
+    href="#section-vocabulary">"RDF vocabularies"</a>. </p>
     
     </section>
 
     <section id="subsection-literal">
 
-      <h3>Literal</h3>
+      <h3>Literals</h3>
 
       <p>Literals are basic values that are not IRIs. Examples of literals include
       strings such as "La Joconde", dates such as "the 4th of July, 1990" and numbers such as "3.14159". 
@@ -346,7 +346,7 @@
 
     <section id="subsection-blank-node">
 
-      <h3>Blank node</h3>
+      <h3>Blank nodes</h3>
 
       <p>IRIS and literals together provide the basic material for
       writing down RDF statements. In addition, it is sometimes handy to
@@ -454,7 +454,7 @@
     Vocabulary Description Language called RDF-Schema [[!RDF-SCHEMA]].
     
 
-    <p>@@ Discuss FOAF, Dublin Core, schema.org and WordNet as typical examples</p>
+    <p>@@ Discuss FOAF, Dublin Core, schema.org, SKOS and WordNet as typical examples</p>
 
 </section>
 
@@ -481,28 +481,28 @@
       <p>@@ explain example step-by-step</p>
 
       <pre class="example" id="turtle-example">
-@base &lt;http://example.org/&gt; .
-@prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt; .
-@prefix xsd: &lt;http://www.w3.org/2001/XMLSchema#&gt; .
-@prefix schema: &lt;http://schema.org/&gt; .
-@prefix dcterms: &lt;http://purl.org/dc/terms/&gt; .
-@prefix wd: &lt;http://www.wikidata.org/entity/&gt; .
-
-&lt;bob#me&gt;
-  a foaf:Person ;
-  foaf:knows &lt;alice#me&gt; ;
-  schema:birthDate "1990-07-04"^^xsd:date ;
-  foaf:topic_interest wd:Q12418 .
-
-&lt;http://viaf.org/viaf/24604287/&gt;
-  a foaf:Person ;
-  foaf:name "Leonardo da Vinci" .
-
-wd:Q12418
-  dcterms:creator &lt;http://viaf.org/viaf/24604287/&gt; .
-
-&lt;http://data.europeana.eu/item/04802/243FA8618938F4117025F17A8B813C5F9AA4D619&gt;
-  dcterms:subject wd:Q12418 .
+01  @base &lt;http://example.org/&gt; .
+02  @prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt; .
+03  @prefix xsd: &lt;http://www.w3.org/2001/XMLSchema#&gt; .
+04  @prefix schema: &lt;http://schema.org/&gt; .
+05  @prefix dcterms: &lt;http://purl.org/dc/terms/&gt; .
+06  @prefix wd: &lt;http://www.wikidata.org/entity/&gt; .
+07 
+08  &lt;bob#me&gt;
+09    a foaf:Person ;
+10    foaf:knows &lt;alice#me&gt; ;
+11    schema:birthDate "1990-07-04"^^xsd:date ;
+12    foaf:topic_interest wd:Q12418 .
+13
+14  &lt;http://viaf.org/viaf/24604287/&gt;
+15    a foaf:Person ;
+16    foaf:name "Leonardo da Vinci" .
+17
+18  wd:Q12418
+19    dcterms:creator &lt;http://viaf.org/viaf/24604287/&gt; .
+20
+21  &lt;http://data.europeana.eu/item/04802/243FA8618938F4117025F17A8B813C5F9AA4D619&gt;
+22    dcterms:subject wd:Q12418 .
       </pre>
 
     </section>