[{"from": "human", "value": "Describe this molecule. [C][Branch1][P][C][=Branch1][C][=O][/C][=C][Branch1][Branch2][\\C][=C][\\C][=Branch1][C][=O][O][/O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an oxo dicarboxylic acid and an enol."}]