[{"role": "user", "content": "I'm reading a book that has a conversation in English, but I'd like to understand what it would sound like in Italian - how do I say 'I know who he is' in Italian?"}, {"role": "assistant", "content": "That's a great question! The translation of 'I know who he is' in Italian is actually 'So chi \u00e8 lui.' If you want to use it in a sentence, you can say 'So chi \u00e8 lui' and the context will usually make it clear who 'lui' (he) is referring to."}]