[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a tricyclic diterpenoid isolated from the stem bark of Fraxinus sieboldiana. It has a role as a plant metabolite. It is a cyclic terpene ketone, a tricyclic diterpenoid and a member of phenols."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][=C][Branch2][Ring1][#C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][C@@H1][C@@][Ring1][Branch2][Branch1][O][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][O][O]"}]