[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a polyunsaturated fatty ester."}, {"from": "gpt", "value": "[C][C][C][C][C][/C][=C][/C][/C][=C][/C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C][=C][C][=Branch2][Ring1][=C][=C][C][C][C][Branch1][#Branch2][O][C][Ring1][=Branch1][=C][Ring1][#Branch2][C][=O][Branch1][C][C][C][C][=Branch1][C][=O][C][=C][Branch1][C][C][C][O][C]"}]