--- a/testcases/provo/prov-o-property-wasRevisionOf-PASS.provn	Wed Dec 05 08:24:53 2012 +0000
+++ b/testcases/provo/prov-o-property-wasRevisionOf-PASS.provn	Wed Dec 05 12:29:48 2012 +0000
@@ -6,6 +6,8 @@
 prefix def <http://example.com/>
 prefix xsi <http://www.w3.org/2001/XMLSchema-instance>
 prefix pc1 <http://www.ipaw.info/pc1/>
+prefix rdfs <http://www.w3.org/2000/01/rdf-schema#>
+
 entity(def:post9821v1,[prov:type='sioc:Post', rdfs:comment = ":post9821v1 is a post, which is a revision of the original post :post9821." %% xsd:string])
 wasDerivedFrom(def:post9821v1, def:post9821,[prov:type='prov:Revision'])
 endDocument
\ No newline at end of file

--- a/testcases/provo/prov-o-property-wasRevisionOf-PASS.provx	Wed Dec 05 08:24:53 2012 +0000
+++ b/testcases/provo/prov-o-property-wasRevisionOf-PASS.provx	Wed Dec 05 12:29:48 2012 +0000
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<prov:document xmlns:prov="http://www.w3.org/ns/prov#" xmlns:ns2="http://openprovenance.org/collection#" xmlns:ns3="http://openprovenance.org/validation#" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:prim="http://openprovenance.org/primitives#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:pc1="http://www.ipaw.info/pc1/">
+<prov:document xmlns:prov="http://www.w3.org/ns/prov#" xmlns:ns2="http://openprovenance.org/collection#" xmlns:ns3="http://openprovenance.org/validation#" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:prim="http://openprovenance.org/primitives#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:pc1="http://www.ipaw.info/pc1/" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
     <prov:entity xmlns:def="http://example.com/" prov:id="def:post9821v1">
         <prov:type xmlns:sioc="http://rdfs.org/sioc/ns#" xsi:type="xsd:QName">sioc:Post</prov:type>
         <rdfs:comment xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xsi:type="xsd:string">:post9821v1 is a post, which is a revision of the original post :post9821.</rdfs:comment>