Example Rating Onotology
We can add classification information to the above data by defining a set of classes with OWL:
<r:RDF xmlns:r="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:p="http://www.w3.org/TR/WD-pics2.0#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xml:base="http://www.w3.org/2004/05/07-CS-RDF/">
<!-- a class of voilent media: -->
<owl:Class rdf:ID="ns#Bang">
<owl:intersectionOf rdf:parseType="Collection">
<owl:Class rdf:about="ns#Base" />
<owl:Restriction>
<owl:onProperty rdf:resource="ns#violentContent" />
<owl:hasValue rdf:resource="9" />
</owl:Restriction>
</owl:intersectionOf>
</owl:Class>
</r:RDF>