p3p#Purpose  The purpose for which the data practise is employed
  subtype:  p3p#Purpose-current  p3p#Purpose-admin  p3p#Purpose-develop  p3p#Purpose-tailoring  p3p#Purpose-individual  p3p#Purpose-pseudo  p3p#Purpose-contact-somehow  p3p#Purpose-historical
  supertype:  pm#P3P_thing
     supertype:  pm#thing_categorized_in_an_ontology
        supertype:  pm#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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