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: West Blvd Womens KINSHASA THIGH HIGH Boots Over The Knee Motorcycle Biker Riding Flat Heels Shoes ,White ,8
Product feature: Package Dimensions: 15.8 x 11 x 5.2 inches, Shipping Weight: 5 pounds, ASIN: B00GS2C6LU, Item model number: Kinshasa-Thigh-High-White 8, Date first listed on Amazon: November 19, 2013, Average Customer Review: 4.2 out of 5 stars 10 customer reviews
Product brand: West Blvd
Target attributes: Shaft Height
Answer: attribute: shaft height
value: over the knee
source: product title