[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a natural product found in Marchantia polymorpha with data available."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch1][C][=O][C@][Branch2][Ring1][Ring2][C][C][C][C][Branch1][#Branch2][C@@][Ring1][=Branch1][C@@H1][Ring1][O][C][Ring1][Ring1][Branch1][C][C][C][C]"}]