[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a trivalent inorganic anion obtained by removal of all three protons from selenophosphoric acid. It has a role as a human metabolite. It is a phosphorus oxoanion and a trivalent inorganic anion."}, {"from": "gpt", "value": "[O-1][P][=Branch1][C][=O][Branch1][C][O-1][Se-1]"}]