[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a vitamin D."}, {"from": "gpt", "value": "[C][C][C][C][=Branch1][C][=O][O][C@H1][C][C][C][=Branch1][C][=C][/C][=Branch2][Ring1][S][=C][\\C][=C][/C][C][C][C@][Branch2][Ring1][Branch1][C@H1][\\-Ring1][=Branch1][C][C][C@@H1][Ring1][Branch1][C@H1][Branch1][C][C][C][C][C][C][Branch1][C][C][C][C][/C][Ring2][Ring1][O]"}]