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: Oakley Gascan Sunglasses & Carekit Bundle
Product description: Oakley Gascan Sunglasses King's Camo - Woodland Camo / Black Iridium & Carekit Bundle
Product feature: Bundle includes HDO Sport cleaning kit, -, -, Shipping Weight: 1 pounds, ASIN: B01574DQI6, Date first listed on Amazon: September 10, 2015, Average Customer Review: 4.5 out of 5 stars 8 customer reviews
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None