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: Crocs Women's 14783 A-Leigh Leather Boot
Product description: The A-leigh boot features a genuine leather upper with a houndstooth textile lining. It has an exceptionally comfortable Croslite material footbed, a wedge heel for a little lift, and rubber outsole pods to improve traction and durability., Crocs, Inc. is a rapidly growing designer, manufacturer and retailer of footwear for men, women and children under the Crocs brand. All Crocs brand shoes feature Crocs' proprietary closed-cell resin, Croslite, which represents a substantial innovation in footwear. The Croslite material enables Crocs to produce soft, comfortable, lightweight, superior-gripping, non-marking and odor-resistant shoes. These unique elements make Crocs ideal for casual wear, as well as for professional and recreational uses such as boating, hiking, hospitality and gardening. The versatile use of the material has enabled Crocs to successfully market its products to a broad range of consumers.
Product feature: 100% Synthetic, Imported, Synthetic sole, Shaft measures approximately 13" from arch, Heel measures approximately 2.5", Boot opening measures approximately 17" around, slip-on, Package Dimensions: 16.4 x 13.2 x 4.7 inches, Shipping Weight: 2.55 pounds, ASIN: B00B4EUWAE, Item model number: 14783 A-Leigh Leather Bt W, Date first listed on Amazon: August 19, 2013, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 3.8 out of 5 stars 76 customer reviews
Target attributes: Type
Answer: attribute: type
value: boot
source: product description
attribute: type
value: boot
source: product title
attribute: type
value: boot
source: product feature