[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a terpene lactone."}, {"from": "gpt", "value": "[C][C][=Branch2][Ring2][Ring1][=C][C][=Branch1][C][=O][C][/C][=Branch2][Ring1][Branch2][=C][/C][C][=C][Branch1][S][C][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][C][O][C][Ring1][#Branch1][=O][O][C][/C][C]"}]