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: The North Face Big Shot II Backpack
Product feature: 22" high, 14" wide, Product Dimensions: 19 x 13 x 2 inches, Shipping Weight: 4.45 pounds, ASIN: B00EP0B0HS, Item model number: CE79YZ2-020, Date first listed on Amazon: June 4, 2014, Average Customer Review: 5.0 out of 5 stars 2 customer reviews
Product brand: The North Face
Target attributes: Capacity
Answer: attribute: capacity
value: None
source: None