https://w3id.org/framester/conceptnet5/data/en/sunstone <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/chemical_substance> <https://w3id.org/framester/conceptnet5/data/en/mineral> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/moonstone> <https://w3id.org/framester/conceptnet5/data/en/aventurine> <https://w3id.org/framester/conceptnet5/data/en/avanturine> <https://w3id.org/framester/conceptnet5/data/en/aventurin> risorse dalla linked data cloud