[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Ambrosia dumosa, Ambrosia chamissonis, and other organisms with data available."}, {"from": "gpt", "value": "[C][C][=C][C][C][Branch2][Ring1][Ring2][C][Branch1][O][C][C][=Branch1][=Branch1][=C][C][C][Ring1][#Branch2][C][O][C][=Branch1][C][=O][C][C][=Branch1][C][=C][C][=Branch1][C][=O][O][Ring2][Ring1][C]"}]