Description: Provides human-readable descriptions for the GraphML
             element containing this <desc> as its first child.
Occurence:   <key>, <graphml>, <graph>, 
             <node>, <port>, <edge>, <hyperedge>, and
             <endpoint>.

<?xml version="1.0" encoding="utf-16"?>
<xs:element name="desc" type="xs:string" block="#all">
    <xs:annotation>
        <xs:documentation source="http://graphml.graphdrawing.org/" xml:lang="en">
           Description: Provides human-readable descriptions for the GraphML
                        element containing this &lt;desc&gt; as its first child.
           Occurence:   &lt;key&gt;, &lt;graphml&gt;, &lt;graph&gt;, 
                        &lt;node&gt;, &lt;port&gt;, &lt;edge&gt;, &lt;hyperedge&gt;, and
                        &lt;endpoint&gt;. 
      </xs:documentation>
    </xs:annotation>
</xs:element>