[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Huperzia serrata with data available."}, {"from": "gpt", "value": "[C][C][=C][C][C][C][=C][Branch1][#C][C][Ring1][=Branch1][Branch1][=Branch2][C][C][=Branch1][Ring2][=C][Ring1][Branch2][C][N][C][=C][C][=Branch1][C][=O][N][Ring1][=N]"}]