[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a member of chromenes. It has a role as a member of precocenes."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][=Branch1][C][=C][C][=C][C][=Branch1][=N][=C][Branch1][Branch2][C][=C][Ring1][=Branch1][O][Ring1][#Branch2][O][C][O][C][C]"}]