--- a/ontology/ProvenanceOntology.owl	Fri Mar 09 09:28:35 2012 +0000
+++ b/ontology/ProvenanceOntology.owl	Fri Mar 09 09:29:03 2012 +0000
@@ -1053,7 +1053,6 @@
     <!-- http://www.w3.org/ns/prov#TimeInstant -->
 
     <owl:Class rdf:about="&prov;TimeInstant">
-        <rdfs:subClassOf rdf:resource="&owl;Thing"/>
         <rdfs:comment>deprecate in favor of InstantaneousEvent? -Tim 6 march 2012</rdfs:comment>
         <prov:category>simple</prov:category>
         <rdfs:comment xml:lang="en">&#39;Instants are, intuitively, point-like in that they have no interior points&#39;