--- a/ontology/ProvenanceOntology.owl	Mon Mar 12 22:06:11 2012 +0000
+++ b/ontology/ProvenanceOntology.owl	Mon Mar 12 19:53:00 2012 -0400
@@ -800,7 +800,7 @@
 
     <owl:Class rdf:about="&prov;Derivation">
         <rdfs:subClassOf rdf:resource="&prov;EntityInvolvement"/>
-        <prov:category>simple</prov:category>
+        <prov:category>qualified</prov:category>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Revision"/>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Traceability"/>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#not_in_DM:_consolidated_derivation_signature"/>
@@ -837,7 +837,6 @@
     <owl:Class rdf:about="&prov;EntityInvolvement">
         <rdfs:subClassOf rdf:resource="&prov;Involvement"/>
         <prov:category>qualified</prov:category>
-        <prov:category>simple</prov:category>
         <rdfs:comment xml:lang="en">An instance of EntityInvolvement is used to provide additional descriptions of a binary relation from any instance to an instance of Entity.</rdfs:comment>
     </owl:Class>
     
@@ -849,7 +848,7 @@
         <rdfs:subClassOf rdf:resource="&prov;ActivityInvolvement"/>
         <rdfs:subClassOf rdf:resource="&prov;InstantaneousEvent"/>
         <rdfs:comment xml:lang="de">An instance of prov:Generation provides additional descriptions about the binary prov:wasGeneratedBy relation from a generated prov:Entity to the prov:Activity that generated it. For example, :cake prov:wasGeneratedBy :baking; prov:qualified [ a prov:Generation; prov:entity :baking; :foo :bar ].</rdfs:comment>
-        <prov:category>simple</prov:category>
+        <prov:category>qualified</prov:category>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Generation"/>
         <prov:unqualifiedForm rdf:resource="&prov;wasGeneratedBy"/>
     </owl:Class>
@@ -860,7 +859,7 @@
 
     <owl:Class rdf:about="&prov;Inform">
         <rdfs:subClassOf rdf:resource="&prov;ActivityInvolvement"/>
-        <prov:category>simple</prov:category>
+        <prov:category>qualified</prov:category>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Activity_Ordering"/>
         <prov:unqualifiedForm rdf:resource="&prov;wasInformedBy"/>
     </owl:Class>
@@ -1024,7 +1023,7 @@
 
     <owl:Class rdf:about="&prov;StartByActivity">
         <rdfs:subClassOf rdf:resource="&prov;ActivityInvolvement"/>
-        <prov:category>simple</prov:category>
+        <prov:category>qualified</prov:category>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Started_by_activity"/>
         <prov:unqualifiedForm rdf:resource="&prov;wasStartedByActivity"/>
     </owl:Class>
@@ -1035,8 +1034,8 @@
 
     <owl:Class rdf:about="&prov;Trace">
         <rdfs:subClassOf rdf:resource="&prov;EntityInvolvement"/>
+        <prov:category>qualified</prov:category>
         <rdfs:comment xml:lang="en">A prov:Trace can be from any prov:Element to any prov:Element, so it cannot be a subclass of prov:EntityInvolvement or prov:ActivityInvolvement.</rdfs:comment>
-        <prov:category>simple</prov:category>
         <rdfs:comment xml:lang="en">An instance of prov:Trace provides additional descriptions about the binary prov:tracedTo relation from some prov:Element (Entity or Activity) to some other prov:Element. For example, :stomach_ache prov:tracedTo :spoon; prov:qualified [ a prov:Trace; prov:entity :spoon; :foo :bar ].</rdfs:comment>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Revision"/>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Traceability"/>
@@ -1050,7 +1049,7 @@
     <owl:Class rdf:about="&prov;Usage">
         <rdfs:subClassOf rdf:resource="&prov;EntityInvolvement"/>
         <rdfs:subClassOf rdf:resource="&prov;InstantaneousEvent"/>
-        <prov:category>simple</prov:category>
+        <prov:category>qualified</prov:category>
         <rdfs:seeAlso rdf:resource="http://www.w3.org/2011/prov/wiki/ProvRDF#Usage"/>
         <prov:unqualifiedForm rdf:resource="&prov;used"/>
     </owl:Class>