[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is zwitterionic form of 5-guanidino-2-oxopentanoic acid. It is a tautomer of a 5-guanidino-2-oxopentanoic acid."}, {"from": "gpt", "value": "[C][Branch1][O][C][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1][C][NH1+1][=C][Branch1][C][N][N]"}]