https://w3id.org/framester/conceptnet5/cla/fr.luthier.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/violin_maker> <https://w3id.org/framester/conceptnet5/data/en/luthier> risorse dalla linked data cloud