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: Hanes Ultimate Men's 4-Pack Platinum Woven Boxer
Product feature: 55% Cotton, 45% Polyester, Imported, Machine Wash, Super soft ring-spun cotton, No gap fly, Full-cut fit, Ultra-premium comfort flex waistband, Tag less, Product Dimensions: 9.5 x 5 x 1 inches, Shipping Weight: 13 ounces ( View shipping rates and policies ), ASIN: B00K4WMAC0, Item model number: Y765P4, Date first listed on Amazon: May 27, 2014, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 2.6 out of 5 stars 5 customer reviews
Product price: $25.65 - $27.99
Target attributes: Silhouette
Answer: attribute: silhouette
value: boxer
source: product title