The materials used to make Birkenstock shoes and sandals can be divided into two categories: Leather and Non-leather.
(The materials; to make; Birkenstock shoes and sandals can be divided into two categories) Context(The materials to make,List([0, 26))):(Birkenstock shoes and sandals; can be divided; into two categories)
The materials to make,List([0, 26))
The materials Birkenstock shoes and sandals
to make can be divided
Birkenstock shoes and sandals can be divided into two categories
into two categories