Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Tin Haul Basic Navy Stonewash
Product description: THC Casual Low Top Shoe Tin Haul Shoes
Product feature: Mens Western Shoes and Footwear, ASIN: B00ANRSHUA, Date first listed on Amazon: December 13, 2012, Average Customer Review: 4.0 out of 5 stars 1 customer review
Product brand: Tin Haul
Target attributes: Style
Answer: attribute: style
value: casual
source: product description