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: Old Gringo Women's Sol L826-4 Boot
Product description: Since 2000, Old Gringo has been focused on a single goal: creating western wear that combines the best materials with the skills of exceptional craftsmen. Beautiful designs and comfort are not accidents. They're the result of applying a contemporary flair for fashion to a time-honored handcrafted art. As they continue to pursue this goal, they strive to make the Old Gringo brand something that their customers feel embodies style and quality.
Product feature: 100% Leather, Leather sole, Shaft measures approximately 8" from arch, Heel measures approximately 1.5", Boot opening measures approximately 12.5" around, Package Dimensions: 12.5 x 12.1 x 4.6 inches, Shipping Weight: 3.25 pounds, ASIN: B004CFAY3W, Item model number: Sol L826-4, Date first listed on Amazon: March 11, 2011, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Type
Answer: attribute: type
value: boot
source: product title
attribute: type
value: boot
source: product feature