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: David King & Co. Deluxe Medium Messenger with Buckle, Tan, One Size
Product description: Highest Grade Vaquetta Leather
Product feature: Designer Lining, Deluxe Hardware, Full flap
Product price: $10.77
Product brand: David King & Co
Target attributes: Material
Answer: attribute: material
value: leather
source: product description