https://w3id.org/framester/conceptnet5/data/en/pipework <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/work> <https://w3id.org/framester/conceptnet5/data/en/pipe> risorse dalla linked data cloud