[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an abietane diterpenoid isolated from the stem bark of Fraxinus sieboldiana. It has a role as a plant metabolite. It is a diterpene lactone, a tetracyclic diterpenoid, a cyclic terpene ketone and an abietane diterpenoid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][=C][Branch2][Ring2][Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C@@H1][C@@H1][C@@][Ring1][Branch2][Branch1][O][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C][=Branch1][C][=O][O][Ring1][N][O]"}]