https://w3id.org/framester/conceptnet5/data/en/thallium <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/hutchinsonite> <https://w3id.org/framester/conceptnet5/cla/de.thallium> <https://w3id.org/framester/conceptnet5/data/en/lorandite> <https://w3id.org/framester/conceptnet5/data/en/crookesite> risorse dalla linked data cloud