[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a trivalent inorganic anion obtained by removal of all three protons from antimonous acid. It is an antimony oxoanion and a trivalent inorganic anion. It is a conjugate base of an antimonous acid."}, {"from": "gpt", "value": "[OH1-1].[OH1-1].[OH1-1].[Sb]"}]