[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a nitrofuran antibiotic."}, {"from": "gpt", "value": "[C][C][C][S][=Branch1][C][=O][=Branch1][C][=O][C][C][N][Ring1][Branch2][/N][=C][/C][=C][C][=C][Branch1][Ring2][O][Ring1][Branch1][N+1][=Branch1][C][=O][O-1]"}]