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: Natha Studios Men's Vespucci Suede Lace Up Desert Chukka Shoes, Sand
Product description: The classic chukka boot style is getting more and more popular and we made it even better. Top quality genuine leather upper gives you comfort and long wear. High grade rubber sole gives you traction and flexibility. All features of top of the line quality footwear.
Product feature: Leather, Imported, Nubuck Leather, Easy Lace Up Shoe, Lightweight, For Comfort, Foam Insole for Cushion, Great for Travel, Package Dimensions: 13.7 x 8.6 x 5.2 inches, Shipping Weight: 2.7 pounds, ASIN: B01CF2VDS8, Item model number: Vespucci, Date first listed on Amazon: March 1, 2016, Average Customer Review: 4.0 out of 5 stars 10 customer reviews
Product brand: Natha Studios
Target attributes: Shaft Height
Answer: attribute: shaft height
value: chukka
source: product title
attribute: shaft height
value: chukka
source: product description