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

Input:
Product title: Tommy Bahama Men's Friends with Benefits Cotton Modal Boxer Brief
Product description: Ultra-soft, comfortable, and smooth to the touch, this classic printed knit cotton modal boxer brief is a great basic
Product feature: 60% Cotton/40% Modal, Imported, Machine Wash, Elastic waistband, Button on center front, Package Dimensions: 13.3 x 10.5 x 1.5 inches, Shipping Weight: 4.8 ounces, ASIN: B00Q4RPNQ4, Item model number: 217910, Date first listed on Amazon: April 21, 2015, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Silhouette
Answer: attribute: silhouette
value: boxer brief
source: product description
attribute: silhouette
value: boxer brief
source: product title