[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a nitrilotriacetate(2-). It is a tautomer of a 2,2',2''-ammoniotriacetate."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][=Branch1][C][=O][O][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1]"}]