<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns:first="http://www.w3.org/2002/03owlt/differentFrom/premises002#"
<owl:Ontology/>
<owl:AllDifferent>
<owl:distinctMembers rdf:parseType="Collection">
<first:Person rdf:about="#Fred" />
<first:Person rdf:about="#Wilma" />
<first:Person rdf:about="#Barney" />
<first:Person rdf:about="#Betty" />
</owl:distinctMembers>
</owl:AllDifferent>
</rdf:RDF>