[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a C-nitro compound and a member of furans."}, {"from": "gpt", "value": "[C][N][Branch1][C][C][/C][=N][/C][=N][N][=C][Branch1][Ring2][O][Ring1][Branch1][/C][=C][/C][=C][C][=C][Branch1][Ring2][O][Ring1][Branch1][N+1][=Branch1][C][=O][O-1]"}]