<rdf:RDF

xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

xmlns:owl="http://www.w3.org/2002/07/owl#"

xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">

<owl:Ontology />

<owl:Class rdf:about="http://owl2.test/rules#C_Sub">

<rdfs:subClassOf>

<owl:Restriction>

<owl:allValuesFrom rdf:resource="http://www.w3.org/2002/07/owl#real"/>

<owl:onProperty>

<owl:DatatypeProperty rdf:about="http://owl2.test/rules#p"/>

</owl:onProperty>

</owl:Restriction>

</rdfs:subClassOf>

</owl:Class>

</rdf:RDF>