https://w3id.org/framester/conceptnet5/cla/nl.vijftien <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/fifteen> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/fifteen> risorse dalla linked data cloud