[{"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][Branch1][=Branch1][C][C][Ring1][Branch1][=O][C][=Branch1][C][=C][C][C][C][C][Ring1][O][O][C][=Branch1][C][=O][C][Ring1][=Branch1][Branch1][Ring1][C][O][O]"}]