https://w3id.org/framester/conceptnet5/data/en/perturb <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/fro.perturber> <https://w3id.org/framester/conceptnet5/cla/enm.perturben> risorse dalla linked data cloud