[{"role": "user", "content": "I need to learn how to express strong emotions in Italian, can you please help me translate 'You're lying' into Italian?"}, {"role": "assistant", "content": "The translation of 'You're lying' in Italian is 'Tu stai mentendo.' It's a direct and strong way to express that you think someone is not telling the truth."}, {"role": "user", "content": "That's perfect, thank you. What if I want to say it in a more formal way? Is there a different translation I should use?"}, {"role": "assistant", "content": "In a more formal situation, you can say 'Lei sta mentendo.' This translation uses the formal 'you' (Lei) instead of the informal 'tu' to convey the same message with more respect and formality."}]