https://w3id.org/framester/conceptnet5/data/en/severity <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/severe.a> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/scalar_quantity> risorse dalla linked data cloud