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: Nunn Bush Men's Arctic Tundra Hiking Boot
Product description: Fashion is where you find it. Nunn Bush found it surrounded in comfort, dedicated to style, and walking in the legacy of quality craftsmanship. Since 1912, Nunn Bush has been making shoes of unparalleled distinction. Today, all Nunn Bush shoes are constructed with the same quality materials, specially selected leathers, and handcrafting expertise that goes back generations. It's something you'll experience in the uncompromising fit, flexibility, and strength in all their footwear.
Product feature: 100% Leather and rubber, Rubber sole, Double gore for exceptional fit, Thermolite linings, Scratch guard protected, Comfort gel construction, Vari-trail outsole, Package Dimensions: 14.1 x 10.9 x 5.1 inches, Shipping Weight: 3.3 pounds, ASIN: B004UOSSWE, Item model number: Arctic Tundra, Date first listed on Amazon: October 4, 2005, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 2.9 out of 5 stars 4 customer reviews
Product brand: Nunn Bush
Target attributes: Type
Answer: attribute: type
value: boot
source: product title