Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: GFL 45 acp Caliber Bullet Neoprene Coasters Set of 4 Hunter Guns Pistol Rifle NRA
Product description: This is a brand new set of 4 coasters. 3.5 inches square and 1/4 in. thick. These cloth-topped, absorbent, neoprene rubber coasters make a great gift. Gift wrapping available for $4.95. This option appears during Checkout.
Product feature: High Quality Image, Full Color, Absorbent Cushioning Pliable Unbreakable, Great Gift Item, Gift Wrapping Available, Guaranteed Satisfaction!
Product price: $14.95
Product brand: The Image Shark
Target attributes: Material
Answer: attribute: material
value: rubber
source: product description
attribute: material
value: neoprene
source: product title