[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a phosphate ion that is the conjugate base of hydrogenphosphate. It is a phosphate ion and a trivalent inorganic anion. It is a conjugate base of a hydrogenphosphate."}, {"from": "gpt", "value": "[O-1][P][=Branch1][C][=O][Branch1][C][O-1][O-1]"}]