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: Samanta Women's Viv Slingback Pump
Product description: Samanta specializes in stylish footwear with unique comfort features. Samanta shoes are designed for sophisticated women that have dynamic lifestyles. Samanta also offers large size womens shoes in up to size 13. Samanta has developed the new fashion formula: Style + Comfort = Luxury.
Product feature: 100% Leather, Leather sole, Heel measures approximately 4 1/4", Platform measures approximately 3/4", Package Dimensions: 11.9 x 9.8 x 4.3 inches, Shipping Weight: 1.6 pounds, ASIN: B002PAR1NM, Item model number: Viv Sling, Date first listed on Amazon: April 27, 2010, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 2.4 out of 5 stars 5 customer reviews
Product brand: Samanta
Target attributes: Type
Answer: attribute: type
value: shoes
source: product description