[{"role": "user", "content": "I'm trying to describe an accident to an Italian friend, but I'm not sure how to express it - can you help me translate the sentence 'He banged his knee' into Italian?"}, {"role": "assistant", "content": "The translation of 'He banged his knee' in Italian is 'Ha battuto il ginocchio'. I hope that helps you describe the accident to your friend."}]