[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a fatty acid ester and a polyunsaturated fatty ester. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C@@H1][Branch2][Ring1][O][C@@H1][Branch2][Ring1][=Branch1][C@H1][Branch1][Ring1][C][O][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][O][O][C][=Branch1][C][=O][C][C][/C][=C][\\C][/C][=C][\\C][C][C]"}]