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: Michael Kors Roxanne Sunglasses in Crystal Burgundy M2941S 618 58
Product description: Michael Kors M2941S Roxanne is Rectangular style Women Sunglasses design. These Sunglasses are comfortable to wear in addition to being fashionable.
Product feature: metal frame, Glass lens, Polarization, Lens width: 58 millimeters, Bridge: 16 millimeters, Arm: 135 millimeters, Model No : M2941S Roxanne, Lens Color :Crystal Burgundy Purple Brown Gradient, All items come with original case, cloth and manufacturers papers., Michael Kors women Sunglasses, Color Code : 618, Package Dimensions: 5 x 3 x 2 inches, Shipping Weight: 1 pounds, ASIN: B00KH9ILWS, Item model number: Model No : M2941S Roxanne, Date first listed on Amazon: May 21, 2014, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: Michael Kors
Target attributes: Silhouette
Answer: attribute: silhouette
value: rectangular
source: product description