[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an oxo carboxylic acid."}, {"from": "gpt", "value": "[C][O][/C][=Branch1][Branch2][=C][/C][=Branch1][C][=O][O][C][/C][=Branch1][C][=O][C][Branch1][S][C][C][C][C][C][C][C][/C][=C][/C][/C][=C][/C][C][=C][C][=Branch1][C][=O][O][C]"}]