https://w3id.org/framester/conceptnet5/data/en/mournful <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ful> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ful> <https://w3id.org/framester/conceptnet5/data/en/mourn> risorse dalla linked data cloud