[{"from": "human", "value": "Could you provide a description of this molecule? [O-1][W][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a divalent inorganic anion obtained by removal of both protons from tungstic acid. It is a divalent inorganic anion and a tungsten oxoanion. It is a conjugate base of a hydrogentungstate."}]