[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a long-chain fatty acid ethyl ester resulting from the formal condensation of the carboxy group of stearidonic acid with the hydroxy group of ethanol. It is functionally related to an all-cis-octadeca-6,9,12,15-tetraenoic acid."}, {"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]"}]