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: BC Footwear Women's Class Reunion
Product description: What an amazing time to be a Girl!!! There has been a significant shift in the way that girls think, act and shop. Girls no longer strive to fit in, but rather, they demand to stand out! BC Footwear embraces this change! BC Footwear was created to give girls, with incredible personal style, something special. Since most girls can't make their own shoes, BC Footwear set out with a lofty goal- to give girls what they want if they only knew they could have it.
Product feature: 100% Synthetic, Rubber sole, Heel measures approximately 1/2", Package Dimensions: 12.1 x 5.8 x 4.7 inches, Shipping Weight: 1.6 pounds, ASIN: B001CATXSM, Item model number: Class Reunion, Date first listed on Amazon: December 1, 2008, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 3.3 out of 5 stars 4 customer reviews
Product brand: BC Footwear
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None