https://w3id.org/framester/conceptnet5/data/en/undoability <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ity> <https://w3id.org/framester/conceptnet5/data/en/undoable> risorse dalla linked data cloud