[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Brachystemma calycinum, Vitis vinifera, and other organisms with data available."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][/C][=C][/C@@][C@@][Branch1][Ring2][O][Ring1][Ring1][Branch1][=C][C][C@H1][Branch1][=Branch2][C][C][Ring1][#Branch1][Branch1][C][C][C][O][C]"}]