[{"role": "user", "content": "I'm trying to learn some common phrases in Italian and I'm stuck on the sentence 'You know it.' Can you help me translate it?"}, {"role": "assistant", "content": "The Italian translation for 'You know it' is 'Lo sai.' This phrase is quite informal, but it's commonly used in everyday conversations. If you want to be more formal, you could use 'Lo sa' instead."}]