p3p#Category
  subtype:  Category-online  Category-uniqueid  Category-purchase  Category-financial  Category-computer  Category-navigation  Category-interactive  Category-demographic  Category-content  Category-state  Category-political  Category-health  Category-preference  Category-location  Category-government  Category-other
  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

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