Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Mark Nason Skechers Men's Langport Lace up Shoe
Product description: It's hardly a stretch to add supreme comfort and refined style with the Mark Nason SKECHERS Langport shoe. Smooth leather and smooth woven elastic fabric upper in a lace up dress casual comfort oxford with stitching and overlay accents. Memory Foam insole.
Product feature: Leather, Fit: True to Size, Upper: Smooth Leather, Features of this item include: Leather, Memory Foam, Package Dimensions: 13.8 x 8.6 x 5 inches, Shipping Weight: 2 pounds, ASIN: B00I0SIU4M, Item model number: 68129_BLK, Date first listed on Amazon: November 17, 2014, Average Customer Review: 3.9 out of 5 stars 5 customer reviews
Target attributes: Type
Answer: attribute: type
value: shoe
source: product description
attribute: type
value: shoe
source: product title