@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix : <foo:greek#>.
:zeus :knows :iokaste, :oedipus, :perineikes, :thesandros.
:KnowsPoPGonP owl:equivalentClass [ a owl:Restriction; owl:onProperty :knows;
  owl:someValuesFrom :Parent-of-Parricide-Grandparent-of-Non-Parricide ].