https://w3id.org/framester/conceptnet5/data/en/learn_foreign_language <https://w3id.org/framester/conceptnet5/schema/HasSubevent> <https://w3id.org/framester/conceptnet5/data/en/familiarize_yourself_with_language%27s_grammar> <https://w3id.org/framester/conceptnet5/schema/MotivatedByGoal> <https://w3id.org/framester/conceptnet5/data/en/travel_abroad> risorse dalla linked data cloud