https://w3id.org/framester/conceptnet5/data/en/hamiltonian.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/system> <https://w3id.org/framester/conceptnet5/data/en/energy> <https://w3id.org/framester/conceptnet5/data/en/observable> <https://w3id.org/framester/conceptnet5/data/en/hamilton> risorse dalla linked data cloud