Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Deal With It Glasses - Thug Life Sunglasses by Swagasaurus Rex
Product feature: See-through pattern! Pixels cause very minimal vision obstruction, UV 400 protection - tell the sun to Deal With It!, Bad-ass Thug Life look and feel - excellent Party Shades!, Comfortable nose support - wear them all day!, Perfect for MLG and Minecraft players - Funny gamer gift!
Product brand: Deal With It Sunglasses
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None