[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a polycyclic alkane and a member of adamantanes. It derives from a hydride of an adamantane."}, {"from": "gpt", "value": "[C][C][C][C][C][C][Branch1][Ring2][C][Ring1][=Branch1][C][C][Branch1][Ring2][C][Ring1][#Branch1][Branch1][Ring2][C][Ring1][#Branch2][C]"}]