[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is allantoic acid in which one of the aminocarbonyl groups is replaced by hydrogen. It is a member of ureas and a non-proteinogenic alpha-amino acid. It is a tautomer of a 2-ureidoglycine zwitterion."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][=Branch1][C][=O][O][Branch1][C][N][N][C][=Branch1][C][=O][N]"}]