[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a vitamin D."}, {"from": "gpt", "value": "[C][C@H1][Branch1][=Branch2][C][C][C][C][Branch1][C][C][C][C@H1][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring1][C][C][C][C][/C][\\-Ring1][=Branch1][=C][\\C][=C][\\C][C][C][C][C][/-Ring1][=Branch1][=C][C]"}]