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: Unlisted Women's Country Club H1 Knee-High Pleather Boot
Product description: Enjoy all-star footwear from Unlisted Keep your wardrobe trendy with a shoe that is made with pleather and have a solid pattern The versatile use of the material has enabled Unlisted to create the perfect shoe With a firm back and sole these shoes provide long-lasting comfort
Product feature: pleather, Synthetic sole, Shaft measures approximately 14" from arch, zipper Closure, Product Dimensions: 5 x 5 x 5 inches, Shipping Weight: 3.7 pounds, ASIN: B00D3OYK1U, Item model number: UL49210PU-TAU, Date first listed on Amazon: May 30, 2013, Average Customer Review: 4.6 out of 5 stars 5 customer reviews
Product brand: Unlisted
Target attributes: Shaft Height
Answer: attribute: shaft height
value: knee-high
source: product title