sentence2_structure: Diabetes<>is<>unpreventable$$$it<>is<>of the second type
sentence1: Type II diabetes mellitus Type II diabetes is a second and more common form of diabetes mellitus.
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?