https://w3id.org/framester/conceptnet5/data/en/perky <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/perk.v> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/y> <https://w3id.org/framester/conceptnet5/data/en/perk> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/perk> <https://w3id.org/framester/conceptnet5/data/en/perk_up> risorse dalla linked data cloud