[{"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 correct translation of 'You know it' in Italian is 'Lei la sa'. This is a formal way of saying it, but if you want to use informal tone, you can say 'Lo sai'."}]