[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a steroid lactone."}, {"from": "gpt", "value": "[C][C@][C][C][C@H1][C@H1][Branch1][=N][C@@H1][Ring1][=Branch1][C][C][C][=Branch1][C][=O][O][Ring1][O][C][C][C][=C][C][=Branch1][C][=O][C][C@][Ring1][S][Ring1][=Branch1][C]"}]