https://w3id.org/framester/conceptnet5/data/en/noetherian_ring.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/ideal> <https://w3id.org/framester/conceptnet5/data/en/commutative_ring> <https://w3id.org/framester/conceptnet5/data/en/leave_ideal> <https://w3id.org/framester/conceptnet5/data/en/right_ideal> risorse dalla linked data cloud