https://w3id.org/framester/conceptnet5/data/en/annual.a <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/year> <https://w3id.org/framester/conceptnet5/data/en/perennial> <https://w3id.org/framester/conceptnet5/data/en/biennial> <https://w3id.org/framester/conceptnet5/data/en/per_annum> risorse dalla linked data cloud