--- a/ontology/ProvenanceOntology.owl	Tue Feb 14 13:37:38 2012 -0500
+++ b/ontology/ProvenanceOntology.owl	Tue Feb 14 13:57:42 2012 -0500
@@ -142,6 +142,7 @@
     <owl:ObjectProperty rdf:about="hadRole">
         <rdf:type rdf:resource="&owl;IrreflexiveProperty"/>
         <rdfs:domain rdf:resource="QualifiedInvolvement"/>
+        <rdfs:range rdf:resource="Role"/>
     </owl:ObjectProperty>
     
 
@@ -152,7 +153,7 @@
         <rdf:type rdf:resource="&owl;IrreflexiveProperty"/>
         <rdfs:label xml:lang="en"
             >has temporal value</rdfs:label>
-        <rdfs:range rdf:resource="TemporalEntity"/>
+        <rdfs:range rdf:resource="Time"/>
         <rdfs:domain>
             <owl:Class>
                 <owl:unionOf rdf:parseType="Collection">
@@ -402,6 +403,14 @@
     
 
 
+    <!-- http://www.w3.org/ns/prov-o/Delegation -->
+
+    <owl:Class rdf:about="Delegation">
+        <rdfs:subClassOf rdf:resource="QualifiedInvolvement"/>
+    </owl:Class>
+    
+
+
     <!-- http://www.w3.org/ns/prov-o/Entity -->
 
     <owl:Class rdf:about="Entity">
@@ -423,7 +432,7 @@
     <!-- http://www.w3.org/ns/prov-o/Instant -->
 
     <owl:Class rdf:about="Instant">
-        <rdfs:subClassOf rdf:resource="TemporalEntity"/>
+        <rdfs:subClassOf rdf:resource="Time"/>
         <rdfs:comment rdf:datatype="&xsd;string"
             >&quot;Instants are, intuitively, point-like in that they have no interior points&quot;
 from the W3C OWL-Time Working Draft (http://www.w3.org/TR/owl-time/).</rdfs:comment>
@@ -434,7 +443,7 @@
     <!-- http://www.w3.org/ns/prov-o/Interval -->
 
     <owl:Class rdf:about="Interval">
-        <rdfs:subClassOf rdf:resource="TemporalEntity"/>
+        <rdfs:subClassOf rdf:resource="Time"/>
         <rdfs:comment rdf:datatype="&xsd;string"
             >&quot;Intervals are, intuitively, things with extent&quot; from W3C OWL-Time Working Draft (http://www.w3.org/TR/owl-time/).</rdfs:comment>
     </owl:Class>
@@ -458,6 +467,22 @@
     
 
 
+    <!-- http://www.w3.org/ns/prov-o/Organization -->
+
+    <owl:Class rdf:about="Organization">
+        <rdfs:subClassOf rdf:resource="Agent"/>
+    </owl:Class>
+    
+
+
+    <!-- http://www.w3.org/ns/prov-o/Person -->
+
+    <owl:Class rdf:about="Person">
+        <rdfs:subClassOf rdf:resource="Agent"/>
+    </owl:Class>
+    
+
+
     <!-- http://www.w3.org/ns/prov-o/Plan -->
 
     <owl:Class rdf:about="Plan">
@@ -473,9 +498,23 @@
     
 
 
-    <!-- http://www.w3.org/ns/prov-o/TemporalEntity -->
+    <!-- http://www.w3.org/ns/prov-o/Role -->
 
-    <owl:Class rdf:about="TemporalEntity">
+    <owl:Class rdf:about="Role"/>
+    
+
+
+    <!-- http://www.w3.org/ns/prov-o/System -->
+
+    <owl:Class rdf:about="System">
+        <rdfs:subClassOf rdf:resource="Agent"/>
+    </owl:Class>
+    
+
+
+    <!-- http://www.w3.org/ns/prov-o/Time -->
+
+    <owl:Class rdf:about="Time">
         <owl:equivalentClass>
             <owl:Class>
                 <owl:unionOf rdf:parseType="Collection">