[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a quinolizine. It is a tautomer of a 9aH-quinolizine and a 2H-quinolizine."}, {"from": "gpt", "value": "[C][C][=C][C][=C][N][Ring1][=Branch1][C][=C][C][=C][Ring1][=Branch1]"}]