[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an iron coordination entity. It contains an EDTA(4-)."}, {"from": "gpt", "value": "[C][Branch1][P][C][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1].[Fe+3]"}]