https://w3id.org/framester/conceptnet5/cla/la.rigor.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/rigidness> <https://w3id.org/framester/conceptnet5/data/en/harshness> <https://w3id.org/framester/conceptnet5/data/en/stiffness> <https://w3id.org/framester/conceptnet5/data/en/severity> risorse dalla linked data cloud