https://w3id.org/framester/conceptnet5/data/en/knowingness <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/know> <https://w3id.org/framester/conceptnet5/data/en/ness> risorse dalla linked data cloud