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: Round Large Lennon Style Flash Mirror Festival Sunglasses
Product description: These classic round metal sunglasses are inspired by the legendary John Lennon and feature color mirrored revo lenses. Not too big and not too small, these sunglasses are perfect for someone looking for a mid sized fit. Made with a metal based frame, metal hinges, and colored polycarbonate lenses.
Product feature: Metal frame, Plastic lens, non-polarized, Lens width: 52 millimeters, Lens height: 52 millimeters, Bridge: 25 millimeters, 100% Protection Against Harmful UVA/UVB Rays, UV400 - 100% Protection against harmful UVA & UVB sun rays. | USA Standard ANSI Z80.3-2001 | CE Certefied, Classic Metal Hinges, Round Lennon Style Design, 30 DAY MONEY BACK GUARANTEE AND 90 DAY LIMITED WARRANTY AGAINST MANUFACTURER DEFECTS: Our main goal is make our customers happy and provide the best shopping experience; If you are not completely satisfied with our product or your purchase please contact us, we'll be happy to help, Product Dimensions: 5 x 1 x 2 inches, Shipping Weight: 0.8 ounces ( View shipping rates and policies ), ASIN: B00WNNB63M, California residents: Click here for Proposition 65 warning, Item model number: ZV-9636d, Date first listed on Amazon: May 1, 2013, Average Customer Review: 3.9 out of 5 stars 11 customer reviews
Product price: $11.99
Product brand: zeroUV
Target attributes: Silhouette
Answer: attribute: silhouette
value: round
source: product description
attribute: silhouette
value: round
source: product title
attribute: silhouette
value: round
source: product feature