--- a/rdf-mt/index.html	Wed Oct 02 07:57:46 2013 -0700
+++ b/rdf-mt/index.html	Wed Oct 02 10:14:51 2013 -0700
@@ -1066,7 +1066,7 @@
 <p>An RDF <a href="http://www.w3.org/TR/rdf11-concepts/#section-dataset" class="externalDFN">dataset</a> (see [[!RDF11-CONCEPTS]]) is a finite set of RDF graphs each paired with an IRI or blank node called the <strong>graph name</strong>, plus a <strong>default graph</strong>, without a name. Graphs in a single dataset may share blank nodes. The association of graph name IRIs with graphs is used by SPARQL [[RDF-SPARQL-QUERY]] to allow queries to be directed against particular graphs.</p>
 -->
 
-<p>RDF <a href="http://www.w3.org/TR/rdf11-concepts/#section-dataset" class="externalDFN">datasets</a>, defined in RDF Concepts [[!RDF11-CONCEPTS]], package up a set of named RDF graphs along with a single unnamed, default graph.  The graphs in a single dataset may share blank nodes. The association of graph name IRIs with graphs is used by SPARQL [[RDF-SPARQL-QUERY]] to allow queries to be directed against particular graphs.</p>
+<p><a class="externalDFN" href="http://www.w3.org/TR/rdf11-concepts/#section-dataset">RDF datasets</a>, defined in RDF Concepts [[!RDF11-CONCEPTS]], package up zero or more named RDF graphs along with a single unnamed, default RDF graph.  The graphs in a single dataset may share blank nodes. The association of graph name IRIs with graphs is used by SPARQL [[RDF-SPARQL-QUERY]] to allow queries to be directed against particular graphs.</p>
 
 <p>Graph names in a dataset may refer to something other than the graph they are paired with. This allows IRI referring to other kinds of entities, such as persons, to be used in a dataset to <a>identify</a> graphs of information relevant to the entity <a>denote</a>d by the graph name IRI.</p>