https://w3id.org/framester/conceptnet5/data/en/polyhedron.n <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/polytope> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/solid> <https://w3id.org/framester/conceptnet5/data/en/face> <https://w3id.org/framester/conceptnet5/data/en/figure> <https://w3id.org/framester/conceptnet5/data/en/polyscope> risorse dalla linked data cloud