https://w3id.org/framester/conceptnet5/data/en/vitamin.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/human> <https://w3id.org/framester/conceptnet5/data/en/vision> <https://w3id.org/framester/conceptnet5/data/en/essential> <https://w3id.org/framester/conceptnet5/data/en/organic_compound> <https://w3id.org/framester/conceptnet5/data/en/metabolism> <https://w3id.org/framester/conceptnet5/data/en/retinoic_acid> <https://w3id.org/framester/conceptnet5/data/en/retinol> <https://w3id.org/framester/conceptnet5/data/en/fat_soluble> <https://w3id.org/framester/conceptnet5/data/en/tretinoin> risorse dalla linked data cloud