https://w3id.org/framester/conceptnet5/data/en/radioactivity <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/radio> <https://w3id.org/framester/conceptnet5/data/en/activity.n> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ity> <https://w3id.org/framester/conceptnet5/data/en/radioactive> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/half_life> risorse dalla linked data cloud