[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Nicotiana tabacum with data available."}, {"from": "gpt", "value": "[C][C][=Branch2][Ring1][Branch1][=C][C][C][/C][=Branch1][=C][=C][/C][C][C][=Branch1][#Branch1][=C][C][=Branch1][C][=O][O][C][/C][C]"}]