[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Knightia excelsa with data available."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch2][Ring2][=Branch2][=C][Branch2][Ring2][Ring1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][=C][Branch1][Ring2][O][Ring1][Branch2][C][=Branch1][#C][=C][C][=Branch1][Branch1][=C][Ring1][#Branch1][C][C][O][C][Ring1][#Branch1][=O][O][C][O][O]"}]