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: Aisun Women's Stylish Comfy Hollow Out Low Cut Flats Shoes
Product description: A pair of comfy shoes can help you walk faster and go further. These flats are just this kind of comfy shoes. The pointed toe design makes them embellish your foot type better. They are air permeable, so you won't feel stuffy. The flat heels make them very comfortable to wear. The outsoles are made of rubber, wearproof and non-skid. They have no many decorations, which conveys an idea of simpleness. In addition, they are easy matching. Such comfy and pretty shoes, don't you want ones? Aisun is the legal brand, registered in the United States Patent and Trademark Office. All rights reserved.
Product feature: Leather, Rubber sole, Fashionable, pretty and comfortable, Durable, breathable and easy matching, The hollow-out design, so ingenious and stylish, The flat heels, so comfortable to wear, Suitable for teenagers, school students, fashion ladies and office workers, Shipping Information: View shipping rates and policies, ASIN: B01CVO0F02, Date first listed on Amazon: March 11, 2016, Average Customer Review: 2.0 out of 5 stars 1 customer review
Product brand: Aisun
Target attributes: Type
Answer: attribute: type
value: shoes
source: product description
attribute: type
value: shoes
source: product title