<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
xmlns:ex="http://www.example.org#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
<rdf:Description rdf:about="http://www.example.org#x1">
<owl:allValuesFrom>
<rdf:Description rdf:about="http://www.example.org#c1">
<rdfs:subClassOf rdf:resource="http://www.example.org#c2"/>
</rdf:Description>
</owl:allValuesFrom>
<owl:onProperty rdf:resource="http://www.example.org#p"/>
</rdf:Description>
<rdf:Description rdf:about="http://www.example.org#x2">
<owl:allValuesFrom rdf:resource="http://www.example.org#c2"/>
<owl:onProperty rdf:resource="http://www.example.org#p"/>
</rdf:Description>
</rdf:RDF>