[{"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][C][Branch1][Ring2][C][Ring1][Branch1][C][Branch2][Ring1][Ring1][C][C][=C][Branch1][Branch1][C][Ring1][Branch2][O][C][Branch1][=Branch1][O][C][Ring1][#Branch1][=O][O][Branch1][C][C][O][C]"}]