Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Marvel Boys' Avengers Deluxe Backpack with Lunch Kit, Multi, One Size
Product description: Avengers backpack with lunch kit. Features the popular characters from the marvel avengers series. Has main compartment, front pocket, and two side mesh pockets for extra storage. Lunch kit detaches and is insulated to keep food and beverages cold or warm
Product feature: Adjustable shoulder straps, Front pocket for extra storage, Padded back, Detachable lunch kit, Backpack measures 16 inch height x 12 inch width x 5 inch depth, Pockets: 3 exterior;Includes Lunch kit
Product brand: Marvel
Target attributes: Material
Answer: attribute: material
value: None
source: None