[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a triterpene that is lanostane in which there is a methylene bridge between the 5- and 9-positions. It derives from a hydride of a lanostane."}, {"from": "gpt", "value": "[C][C@H1][Branch1][=Branch2][C][C][C][C][Branch1][C][C][C][C@H1][C][C][C@@][Branch2][Ring2][Ring1][C@@][Ring1][Branch1][Branch2][Ring1][N][C][C][C@][C@H1][Ring1][=Branch1][C][C][C@@H1][C@][Ring1][=Branch1][Branch1][Ring2][C][Ring1][#Branch1][C][C][C][C][Ring1][#Branch1][Branch1][C][C][C][C][C]"}]