[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a trivalent inorganic anion obtained by removal of all three protons from antimonic acid. It is an antimony oxoanion and a trivalent inorganic anion. It is a conjugate base of an antimonate(2-)."}, {"from": "gpt", "value": "[O-1][Sb][=Branch1][C][=O][Branch1][C][O-1][O-1]"}]