[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an organonitrogen heterocyclic compound and an oxacycle."}, {"from": "gpt", "value": "[C][C][C][C][=Branch1][C][=O][N][C][=C][C][=C][C][=C][Ring1][=Branch1][O][Ring1][N]"}]