[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is dianionic form of selenophosphoric acid. It is a phosphorus oxoanion and a divalent inorganic anion. It is a conjugate base of a selenophosphoric acid."}, {"from": "gpt", "value": "[O][P][=Branch1][C][=O][Branch1][C][O-1][Se-1]"}]