[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Callitris columellaris with data available."}, {"from": "gpt", "value": "[C][C@@H1][C][C][C][=C][Branch2][Ring1][#Branch1][C][C@H1][C@H1][Branch1][#Branch1][C][C@@H1][Ring1][#Branch2][Ring1][#Branch1][C][=Branch1][C][=C][C][=Branch1][C][=O][O][Ring1][=Branch2][C]"}]