[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a hexuronate that results from the removal of a proton from the carboxy group of 4-deoxy-beta-L-threo-hex-4-enopyranuronic acid. It is a hexuronate and a monocarboxylic acid anion. It is a conjugate base of a 4-deoxy-beta-L-threo-hex-4-enopyranuronic acid."}, {"from": "gpt", "value": "[C][=C][Branch1][=C][O][C@@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C][=Branch1][C][=O][O-1]"}]