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: ECCO Men's Kenton Brogue Tie Oxford
Product description: This modern brogue derby leather shoe in vintage leathers and simple handstitches are to be worn as you feel fit, ECCO is a European shoe company founded in Denmark in 1963. Today they own and operate factories throughout Europe and Asia. They produce all the leather used in making Ecco shoes, taking measures to protect the environment at the same time. Their sole aim is to make a comfortable walking shoe.
Product feature: 100% Leather, Imported, Synthetic sole, Leather upper, Leather and textile lining, Removable leather covered inlay sole with ecco comfort fibre system, Leather welt and stacked leather heel, Modern sole, Shipping Weight: 12 ounces ( View shipping rates and policies ), ASIN: B01EV8Y782, Item model number: Kenton Brogue Tie, Date first listed on Amazon: November 18, 2016, Average Customer Review: 3.9 out of 5 stars 19 customer reviews
Product price: $169.00 - $199.95
Target attributes: Silhouette
Answer: attribute: silhouette
value: brogue
source: product feature
attribute: silhouette
value: brogue
source: product title
attribute: silhouette
value: oxford
source: product title
attribute: silhouette
value: brogue
source: product description