https://w3id.org/framester/conceptnet5/data/en/amethyst <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/cla/la.amethystus.n> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/enm.ametist> <https://w3id.org/framester/conceptnet5/cla/fro.ametiste> <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/IsA> <https://w3id.org/framester/conceptnet5/data/en/quartz> <https://w3id.org/framester/conceptnet5/data/en/birth_stone> <https://w3id.org/framester/conceptnet5/data/en/semi_precious_stone> <https://w3id.org/framester/conceptnet5/data/en/precious_stone> risorse dalla linked data cloud