[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Xanthium sibiricum with data available."}, {"from": "gpt", "value": "[C][C@H1][C][C@H1][C@H1][Branch1][#Branch1][C][=C][C][Ring1][#Branch1][=O][C@H1][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][#Branch2][C]"}]