https://w3id.org/framester/conceptnet5/data/en/strontium <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/gd.an> <https://w3id.org/framester/conceptnet5/cla/gd.sithein> <https://w3id.org/framester/conceptnet5/cla/gd.t> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/chemistry> <https://w3id.org/framester/conceptnet5/data/en/radioactive_substance> <https://w3id.org/framester/conceptnet5/data/en/unalloyed_metal> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/celestite> <https://w3id.org/framester/conceptnet5/cla/de.strontium> risorse dalla linked data cloud