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: Fruit of the Loom Men's 4-Pack Assorted Low Rise Boxer Briefs Underwear
Product description: This pack of low rise boxer briefs are designed with superior features like reinforced leg bands that keep the underwear in place and plush-backed waistbands that are soft against the skin.
Product feature: 100% Cotton, Machine Wash, Multi-panel construction for a superior fit, Reinforced leg bands, Plush-backed waistband, Package Dimensions: 10.2 x 7.6 x 2.7 inches, Shipping Weight: 11.2 ounces, ASIN: B00ZYE1EDO, Item model number: 4EL761L, Date first listed on Amazon: June 18, 2015, Average Customer Review: 2.0 out of 5 stars 1 customer review
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None