Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Sprayground Unisex Red Snake Spython Backpack One Size Assorted
Product description: Do you want the ultimate fashion accessory? Velour sunglass compartment Hidden large back compartment Notorious stash pocket 15? velour laptop sleeve Padded tablet sleeve Four mesh-velcro accessory compartments Padding on back for added support Adjustable straps for custom sizing Durable 900d Water-Resistant Fabric Custom reinforced SBS Zippers and shoulder straps
Product feature: Adjustable Straps for custom sizing, Durable 900d Water-Resistant Fabric
Product brand: Sprayground
Target attributes: Capacity
Answer: attribute: capacity
value: None
source: None