[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a terpene lactone."}, {"from": "gpt", "value": "[C][C][C][=C][C][Branch1][#Branch1][C][O][C][Ring1][Branch1][=O][C][Branch1][S][C][C][Ring1][O][C][C][Branch1][Ring2][C][Ring1][Branch1][Branch1][C][C][C][O]"}]