p3p#PolicyRef__policy_reference  A Policy Reference
  supertype:  PolicyRefResource  A collection of, or a single, PolicyReference
     supertype:  PolicyResource  A PolicyReference or a Policy
        supertype:  P3P_thing
           supertype:  thing_categorized_in_an_ontology
              supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

No statement uses or specializes PolicyRef; click here to add one.