https://w3id.org/framester/conceptnet5/data/en/ligand <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/la.ligandus> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/coordination_compound> risorse dalla linked data cloud