[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][C][=C][Branch1][=Branch2][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a mononitronaphthalene carrying a nitro group at position 2."}]