Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Zeaie Men's Classic comfortable Boxer Briefs darkgray XL
Product description: Zeaie Men's Classic comfortable Boxer Briefs,simple design. Fabrics (including rubber band): 57.5% cotton, 47.5% regenerated fiber, and 5% spandex.
Product feature: Cotton, 3D-cutting, sexy and fashionable, comfortable and soft, Machine Wash, Made in china, ASIN: B00DJ95W48, Date first listed on Amazon: June 21, 2013, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: Zeaie
Target attributes: Silhouette
Answer: attribute: silhouette
value: boxer briefs
source: product title
attribute: silhouette
value: boxer briefs
source: product description