https://w3id.org/framester/conceptnet5/cla/la.opera.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/work> <https://w3id.org/framester/conceptnet5/data/en/trouble> <https://w3id.org/framester/conceptnet5/data/en/labour> <https://w3id.org/framester/conceptnet5/data/en/pain> <https://w3id.org/framester/conceptnet5/data/en/exertion> risorse dalla linked data cloud