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: BOHG Jewelry Mens Womens Wide 11mm Stainless Steel Biker Rings Love Couples Wedding Band Polished Silver
Product description: Including one black velvet bag printed "BOHG".
Product feature: Including one black velvet bag printed "BOHG"., Color: Silver, Material: Stainless Steel, Width: 11mm, Available sizes: 7,8,9,10,11,12,13, ASIN: B014WLNF7W, Item model number: OBJ-59mz7, Date first listed on Amazon: September 4, 2015, Average Customer Review: 5.0 out of 5 stars 4 customer reviews
Product brand: BOHG
Target attributes: Silhouette
Answer: attribute: silhouette
value: wedding band
source: product title