[{"role": "user", "content": "I'm trying to learn Italian and I came across the sentence 'This must be Tom's.' Can you help me translate it into Italian so I can better understand how to express possession in the language?"}, {"role": "assistant", "content": "The translation of 'This must be Tom's' into Italian is 'Questo deve essere di Tom.' This sentence is a great example of how to express possession in Italian. In this case, 'di Tom' is used to indicate that something belongs to Tom."}]