--- a/dcat/index.html	Thu May 30 11:20:43 2013 +0100
+++ b/dcat/index.html	Thu May 30 11:28:56 2013 +0100
@@ -916,11 +916,23 @@
 </section> <!-- end class Distribution -->
 
 <section>
-<h2 id="Class:_Category_and_category_scheme">Class: Category and category scheme</h2>
+<h2 id="Class:_Concept_Scheme">Class: Concept scheme</h2>
 <p>The knowledge organization system (KOS) used to represent themes/categories of datasets in the catalog.</p>
 
 <table class="definition">
-  <thead><tr><th>RDF Classes:</th><th><a href="http://www.w3.org/2004/02/skos/core#ConceptScheme">skos:ConceptScheme</a>, <a href="http://www.w3.org/2004/02/skos/core#Concept">skos:Concept</a></th></tr></thead>
+  <thead><tr><th>RDF Class:</th><th><a href="http://www.w3.org/2004/02/skos/core#ConceptScheme">skos:ConceptScheme</a></th></tr></thead>
+  <tbody>
+    <tr><td class="prop">See also:</td><td><a href="#Property:catalog_themes">catalog themes</a>, <a href="#Property:dataset_theme">dataset theme</a></td></tr>
+  </tbody>
+</table>
+</section>
+
+<section>
+<h2 id="Class:_Concept">Class: Concept</h2>
+<p>A category or a theme used to describe datasets in the catalog.</p>
+
+<table class="definition">
+  <thead><tr><th>RDF Class:</th><th><a href="http://www.w3.org/2004/02/skos/core#Concept">skos:Concept</a></th></tr></thead>
   <tbody>
     <tr><td class="prop">Usage note:</td><td>It is necessary to use either skos:inScheme or skos:topConceptOf on every skos:Concept otherwise it's not clear which concept scheme they belong to.</td></tr>
     <tr><td class="prop">See also:</td><td><a href="#Property:catalog_themes">catalog themes</a>, <a href="#Property:dataset_theme">dataset theme</a></td></tr>