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: Renzo Fontanelli Women's Drogie Pump
Product description: Starting as a boot-maker in 1969, Renzo Fontanelli quickly evolved into creating classic women's footwear. In the early 1990's Mr. Fontanelli decided to launch his own line bearing his name. He incorporated as many widths as possible which today covers 4A-C. Located between Pisa and Florence, Italy, the factory produces roughly 1,200 pairs of shoes per day. Today Mr. Fontanelli's sons, Fabio and Andrea, join him in the family business.
Product feature: 100% Leather, Leather sole, Heel measures approximately 2", Package Dimensions: 12 x 8 x 4 inches, Shipping Weight: 2 pounds, ASIN: B004XG54P8, Item model number: Drogie, Date first listed on Amazon: August 30, 2011, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Silhouette
Answer: attribute: silhouette
value: pump
source: product title