https://w3id.org/framester/conceptnet5/data/en/vanadium <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/unalloyed_metal> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/patronite> <https://w3id.org/framester/conceptnet5/data/en/carnotite> <https://w3id.org/framester/conceptnet5/cla/de.vanadium> risorse dalla linked data cloud