[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a hydroxy monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of (4S,5S)-4,5-dihydroxy-2,6-dioxohexanoic acid. The major species at pH 7.3. It is a hydroxy monocarboxylic acid anion and a dioxo monocarboxylic acid anion. It is a conjugate base of a (4S,5S)-4,5-dihydroxy-2,6-dioxohexanoic acid."}, {"from": "gpt", "value": "[C][Branch1][O][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][=O][O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1]"}]