[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a naphthofuran."}, {"from": "gpt", "value": "[C][C@@][Branch2][Ring1][=Branch1][C][C][C][C@][Branch1][#C][C][Ring1][=Branch1][C][C][C][=C][Ring1][=Branch1][C][O][C][Ring1][Branch1][C][C][O]"}]