[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a hydroxy monocarboxylic acid anion and a phenylpyruvate. It is functionally related to a propionate. It is a conjugate base of an enol-phenylpyruvic acid."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O][O-1]"}]