[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Tanacetum parthenium, Centipeda cunninghamii, and other organisms with data available."}, {"from": "gpt", "value": "[C][C][=C][C][C@H1][C@H1][Branch1][O][C@@H1][Ring1][=Branch1][C][Ring1][Ring2][Branch1][C][C][C][O][C][=Branch1][C][=O][C]"}]