[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a trienoic fatty acid comprising alpha-eleostearic acid having a 4-oxo substituent. It is a 4-oxo monocarboxylic acid, an oxo fatty acid, a long-chain fatty acid, a straight-chain fatty acid and a trienoic fatty acid. It is functionally related to a (9Z,11E,13E)-octadeca-9,11,13-trienoic acid."}, {"from": "gpt", "value": "[C][C][C][C][/C][=C][/C][=C][/C][=C][\\C][C][C][C][C][=Branch1][C][=O][C][C][C][=Branch1][C][=O][O]"}]