[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a pentacarboxylic acid anion. It is a conjugate base of a pentetate(4-)."}, {"from": "gpt", "value": "[C][Branch1][P][C][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1][N][Branch2][Ring1][C][C][C][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1]"}]