https://w3id.org/framester/conceptnet5/data/en/lacrimal_fluid <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/natural_inanimate_thing> <https://w3id.org/framester/conceptnet5/data/en/lubricant> <https://w3id.org/framester/conceptnet5/data/en/saline_solution> <https://w3id.org/framester/conceptnet5/data/en/bodily_secretion> risorse dalla linked data cloud