--- a/xml/schema/extensions/prov-extended-elements.xsd	Wed Jan 30 13:56:15 2013 -0500
+++ b/xml/schema/extensions/prov-extended-elements.xsd	Wed Jan 30 14:12:37 2013 -0500
@@ -42,6 +42,9 @@
         <xs:element ref="prov:derivedByInsertionFrom"/>
         <xs:element ref="prov:derivedByRemovalFrom"/>
 
+        <!-- PROV-LINKS -->
+        <xs:element ref="prov:mentionOf"/>
+
         <xs:any namespace="##other"/>
       </xs:choice>
       <xs:element ref="prov:abstractElement" minOccurs="0" maxOccurs="unbounded" />
@@ -50,4 +53,3 @@
   </xs:redefine>
 
 </xs:schema>
-