[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a 2-amino-4-hydroxypteridine. It is a tautomer of a 2-aminopteridin-4(3H)-one and a 2-aminopteridin-4(1H)-one."}, {"from": "gpt", "value": "[C][=C][N][=C][C][=Branch1][Ring2][=N][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][Branch2][N]"}]