[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Piper nigrum, Artemisia annua, and Abies sibirica with data available."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][=Branch1][C][C@H1][C@H1][Ring1][Ring2][C][C][C][=Branch1][C][=C][C@@H1][Branch1][#Branch1][C][C][C][Ring1][#Branch2][=C][O][C]"}]