[{"role": "user", "content": "I'm reading a story about Tom and it says 'Tom is on the wagon.' Can you tell me what that means and how I would express it in Italian?"}, {"role": "assistant", "content": "The phrase 'Tom is on the wagon' is an idiomatic expression that means Tom has stopped drinking alcohol, often as part of a commitment to sobriety. In Italian, you would express this as 'Tom \u00e8 sul vagone.'"}]