[{"role": "user", "content": "I'm trying to communicate with my Italian friend and I said 'Somebody called', could you please tell me how to say that in Italian?"}, {"role": "assistant", "content": "You can say 'Qualcuno chiam\u00f2' to convey that message in Italian. If you want to say it in a more informal context, you can say 'Qualcuno ha chiamato'."}, {"role": "user", "content": "What's the difference between 'Qualcuno chiam\u00f2' and 'Qualcuno ha chiamato'?"}, {"role": "assistant", "content": "'Qualcuno chiam\u00f2' is in the simple past tense, implying the action of calling happened at a specific point in the past. On the other hand, 'Qualcuno ha chiamato' is in the present perfect tense, indicating the action of calling happened at some point in the past and may have an impact on the present."}]