[{"role": "user", "content": "I'm writing a letter to my Italian pen pal and I want to describe my relationships, can you tell me how to translate the sentence 'They're old friends' into Italian?"}, {"role": "assistant", "content": "The translation of 'They're old friends' in Italian is 'Sono amici di vecchia data.' This phrase accurately conveys the idea that the people in question have been friends for a long time."}]