https://w3id.org/framester/conceptnet5/data/en/methylated.a <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/denature> <https://w3id.org/framester/conceptnet5/data/en/addition> <https://w3id.org/framester/conceptnet5/data/en/methyl_alcohol> <https://w3id.org/framester/conceptnet5/data/en/methylation> risorse dalla linked data cloud