[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a tricarboxylic acid trianion resulting from the deprotonation of all three hydroxy groups of nitrilotriacetic acid. It is a NTA and a tricarboxylic acid trianion. It is a conjugate base of a nitrilotriacetate(2-)."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1]"}]