[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Abies chensiensis with data available."}, {"from": "gpt", "value": "[C][C][Branch2][Ring2][=Branch1][C][C][C][C][Branch2][Ring1][=C][C][Ring1][=Branch1][C][C][C][Branch2][Ring1][Ring2][C][Ring1][=Branch1][C][C][Branch1][Ring2][O][Ring1][Branch1][C][Branch1][C][C][Branch1][Ring1][C][=C][O][C][C][C]"}]