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: John Deere Men's 11-Inch Deep Dip NST PO Work Boot
Product description: 11 inch, John Deere is an American icon and a familiar, trusted company with a repuation anchored in reliability, quality workmanship and value. This tradition of excellence began more than 160 years ago when a young blacksmith and inventor, John Deere, designed the original self-scouring steel plow. His legacy continues today with boots & shoes for tough outdoor jobs.
Product feature: 100% Leather, Imported, Synthetic sole, Shaft measures approximately 11" from arch, Boot opening measures approximately 14" around, Western-style work boot in rugged leather with suede underlay at topline scallop, Steel shank, Dual pull-on loops, NST rated, Abrasion-, oil-, and slip-resistant outsole, Shipping Weight: 4 pounds ( View shipping rates and policies ), ASIN: B01DOJPY90, Item model number: MEN 11 BRN DEEP DIP NST PO-M, Date first listed on Amazon: May 25, 2016, Average Customer Review: 3.6 out of 5 stars 14 customer reviews
Product price: $124.99 - $143.00
Product brand: John Deere
Target attributes: Type
Answer: attribute: type
value: boot
source: product feature
attribute: type
value: boot
source: product title
attribute: type
value: boots
source: product description