[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a 3-oxo fatty acid derived from stearic acid. It is functionally related to an octadecanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][C][C][=Branch1][C][=O][O]"}]