--- a/ontology/components/Account.ttl	Sun Oct 02 19:25:41 2011 -0400
+++ b/ontology/components/Account.ttl	Sun Oct 02 19:31:30 2011 -0400
@@ -15,8 +15,14 @@
    ];
    rdfs:subClassOf [
       a owl:Restriction;
-      owl:cardinality 1;
-      owl:onProperty prov:hasAssertions;
+      owl:onProperty     prov:hasAssertions;
+      owl:minCardinality 1;
+   ];
+   rdfs:comment "An Account associates an asserting agent with some set of assertions, which are available from a ProvenanceContainer.";
+   rdfs:subClassOf [
+      a owl:Restriction;
+      owl:onProperty    prov:hasAssertions;
+      owl:allValuesFrom prov:ProvenanceContainer;
    ];
 .