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: Calvin Klein Women's Phiona Shiny Nappa Ballet Flat
Product description: Calvin Klein is a premier American designer and global brand leader responsible for creating everything from home goods to fashionable shoes and apparel. Known as "the supreme master of minimalism," Calvin Klein is one of the worlds most prestigious and luxurious brands, setting the tone of elegance and modern sophistication.
Product feature: 100% Leather, Rubber sole, Heel measures approximately 0.5", Package Dimensions: 12 x 8 x 4 inches, Shipping Weight: 2 pounds, ASIN: B006826GV6, Item model number: Phiona Shiny Nappa, Date first listed on Amazon: March 21, 2012, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Heel Height
Answer: attribute: heel height
value: flat
source: product title