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: Smittybilt JB44-RT Textured Black Tubular Rear Bumper
Product description: Smittybilt Textured Black Tubular Rear Bumper is crafted from high quality steel tubing and robotically welded for the utmost precision, each Tubular Bumper is specially treated with a zinc undercoating, followed by a dual powdercoat painted finish, ensuring heavy duty performance and style. This unit is put through a variety of tests under extreme and unusual conditions to ensure high quality and dependability.
Product feature: Sport the signature look with pre-cut vertical uprights, Stainless steel design is polished to a mirror finish, One-piece design is robotically welded for extreme durability, Assured high quality and dependability, Tested under extreme conditions
Product brand: Smittybilt
Target attributes: Type
Answer: attribute: type
value: rear bumper
source: product description
attribute: type
value: rear bumper
source: product title