[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][Branch2][Ring2][=Branch1][N][C][=C][Branch2][Ring1][#C][C][=Branch2][Ring1][#Branch2][=C][C][=C][Branch1][S][N][=C][Ring1][Branch1][C][Ring1][=Branch2][=C][Ring1][=N][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O][OH0][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a pyrroloquinoline cofactor, a semiquinone and a tricarboxylic acid."}]