[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an organic radical cation derived from 5,6,7,8-tetrahydrobiopterin. It is functionally related to a 5,6,7,8-tetrahydrobiopterin."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][N][C][Branch2][Ring1][#Branch1][C][C][N][C][=C][Branch1][Ring2][NH1+1][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][Branch2][N][O][O]"}]