https://w3id.org/framester/conceptnet5/data/en/masker <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/er> <https://w3id.org/framester/conceptnet5/data/en/mask> <https://w3id.org/framester/conceptnet5/cla/enm.malskren> risorse dalla linked data cloud