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: Nine West Women's Pickabone Knee-High Boot
Product description: Nine West offers a quick edit of the runways -- pinpointing the must have looks of the season, and translating what is fun, hip, and of the moment. It is trend-right footwear that you will reach for in your closet again and again. Nine West is sure to be your trusted resource for everyday chic style.
Product feature: 100% Leather, Imported, Synthetic sole, Shaft measures approximately 19" from arch, Heel measures approximately 1", Boot opening measures approximately 15.75" around, Package Dimensions: 12 x 8 x 4 inches, Shipping Weight: 2 pounds, ASIN: B0089XPQMC, Item model number: Pickabone, Date first listed on Amazon: September 22, 2012, Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 4.5 out of 5 stars 5 customer reviews
Target attributes: Shaft Height
Answer: attribute: shaft height
value: knee-high
source: product title