sentence2_structure: Diabetes<>is<>unpreventable$$$it<>is<>of the second type
sentence1: Unlike Type 1 diabetes, Type 2 diabetes may respond to treatment with exercise, diet, or oral medications.
sentence2: Diabetes is unpreventable in the type one form but may be prevented by diet if it is of the second type.
question: What disease is unpreventable in the type one form but may be prevented by diet if it is of the second type?