[{"from": "human", "value": "What can you tell me about this molecule? [C][N][C@@H1][Branch1][#Branch1][C][C][C][Ring1][Branch1][=O][C][=C][N][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is the major metabolite of nicotine."}]