https://w3id.org/framester/conceptnet5/data/en/reference_implementation <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/implementation.n> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/implementation> <https://w3id.org/framester/conceptnet5/data/en/reference> risorse dalla linked data cloud