[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a natural product found in Porella swartziana with data available."}, {"from": "gpt", "value": "[C][C@@][C][C@@H1][Ring1][Ring1][C][C][Branch2][Ring1][C][C][=C][C][Ring1][Branch2][=C][C][=Branch1][C][=O][C@@][Ring1][=Branch1][Branch1][C][C][O][Branch1][C][C][C]"}]