https://w3id.org/framester/conceptnet5/data/en/chafer <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/er> <https://w3id.org/framester/conceptnet5/data/en/chafe> <https://w3id.org/framester/conceptnet5/cla/nl.kever> risorse dalla linked data cloud