Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Copper-Tone Lt. Colorado Crystal Leverback Earrings
Product description: Copper-tone Lt. Colorado Crystal Leverback Earrings - Approximate Length: 39 MM - Approximate Width: 26 MM
Product feature: Free Gift Box and Silk Pouch included with every item!, Trusted Seller for over 5 years with Five-star rating and excellent customer service. Complete satisfaction guarantee and 30 Day no-hassle returns., ASIN: B007AM8EN6, Item model number: BF830, Date first listed on Amazon: February 17, 2012, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: 1928 Jewelry
Target attributes: Silhouette
Answer: attribute: silhouette
value: leverback
source: product title
attribute: silhouette
value: leverback
source: product description