https://w3id.org/framester/conceptnet5/data/en/smooth_surface <https://w3id.org/framester/conceptnet5/schema/HasA> <https://w3id.org/framester/conceptnet5/data/en/less_friction> <https://w3id.org/framester/conceptnet5/schema/HasProperty> <https://w3id.org/framester/conceptnet5/data/en/more_likely_to_be_good_mirror> risorse dalla linked data cloud