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

Input:
Product title: Granite Gear Campus Vernon Backpack
Product description: The Vernon utilizes Repelaweave fabric and a Taurpalite bottom for maximum weather protection and durability. Its many compartments, including a multi-pocket organizer make safely carrying all books, supplies, and electronics easy. A Barrier zippered Tricot lined stash pocket keeps smaller devices scratch-free and out of the rain, while an internal Gear-Tec computer sleeve secures laptops up to 17 inches. But organization and protection are not the Vernon's only strengths. The Vernon's breathable, load absorbing shoulder harness and raised foam back panel, means that you can always comfortably carry everything you need for class.
Product feature: Fabric, Ergonomic MaxLoad multi-compartment design, Dual stretch mesh hydration pockets, Gear tech computer sleeve fits most 17 laptops, Dimensions: 19.5x12.25x8, Volume: 1850 cuin / 30.25 L
Product price: $39.99
Product brand: Granite Gear
Target attributes: Type
Answer: attribute: type
value: books
source: product description
attribute: type
value: campus
source: product title