https://w3id.org/framester/conceptnet5/data/en/alpha_particle <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/alpha.n> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/helion> risorse dalla linked data cloud