https://w3id.org/framester/conceptnet5/data/en/hellenise <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/hellenic> <https://w3id.org/framester/conceptnet5/data/en/hellene.n> risorse dalla linked data cloud