[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Pinus strobus, Pinus sylvestris, and Cryptomeria japonica var. sinensis with data available."}, {"from": "gpt", "value": "[C][C][=C][C][C][C][Branch1][#C][C][=C][C][Branch1][Branch1][C][C][Ring1][#Branch2][C][Branch1][C][C][C][Branch1][C][C][O]"}]