[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a sesquiterpene lactone."}, {"from": "gpt", "value": "[C][C][C][C][C][C][Branch1][P][C][Ring1][=Branch1][C][Branch1][#Branch1][C][C][C][Ring1][#Branch2][O][Branch1][C][C][O][O][C][=Branch1][C][=O][C][Ring1][=C][=C]"}]