--- a/ontology/ProvenanceOntology.owl	Thu Apr 26 11:01:03 2012 -0400
+++ b/ontology/ProvenanceOntology.owl	Thu Apr 26 11:17:02 2012 -0400
@@ -275,6 +275,7 @@
         <prov:component>derivations</prov:component>
         <prov:category>qualified</prov:category>
         <rdfs:comment xml:lang="en">Optional: The Activity that is part of the Involvement, which used, generated, invalidated, or was the responsibility of some Entity.</rdfs:comment>
+        <prov:editorialNote>The multiple rdfs:domain assertions are intended. One is simpler and works for OWL-RL, the union is more specific but is not recognized by OWL-RL.</prov:editorialNote>
         <rdfs:range rdf:resource="&prov;Activity"/>
         <rdfs:domain rdf:resource="&prov;Involvement"/>
         <rdfs:domain>