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: Burnside Men's Rainfall Short Sleeve Shirt
Product description: Our Thorn Short Sleeve Button Up is the perfect shirt to subtly express your style. Featured in a variety of fashion prints to choose from, this shirt also features a chest pocket that varies by style.
Product feature: 55% Cotton / 45% Polyester, Imported, Featured in a variety of fashion print options, Short sleeve button up closure, *Chest pockets vary per style*, Machine Washable, Package Dimensions: 1 x 1 x 1 inches, Shipping Weight: 1 pounds ( View shipping rates and policies ), ASIN: B01ABKLUQQ, Item model number: AZBG9245, Date first listed on Amazon: February 27, 2016, Average Customer Review: 4.0 out of 5 stars 8 customer reviews
Product price: $9.18 - $23.99
Target attributes: Fastening Style
Answer: attribute: fastening style
value: button up
source: product description
attribute: fastening style
value: button up
source: product feature