Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: East West Classic Backpack with Key Holder and Bottle Holder B101s
Product description: Small size functional school backpack/daypack with 600-denier construction
Product feature: polyester, Single main compartment and front pocket, Stores 2 to 3 textbooks, binder, spiral notebooks, calculator, cell phone, and more, 875 cubic inches of storage, Large size Backpack, Size : 13" x 16.5" x 6.5 "
Product price: $22.99
Product brand: EastWest
Target attributes: Type
Answer: attribute: type
value: school backpack
source: product description