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: KEDDO Women's Nautical Style Ballet Flat
Product description: The unique shape of this style is emphasized by the contrast between striped upper and dark sole. Soft fringe around the shoe transforms into a bow at the front. Thickness of the sole provides optimum shock absorbption while walking.
Product feature: Manmade, Imported, Rubber sole, Comfortable low heel, Cheery striped design, Nautical style, Elegant classic shape, Genuine Leather lining, Product Dimensions: 11.8 x 5.1 x 3.9 inches, Shipping Weight: 14.4 ounces, ASIN: B00FI2ZY0Q, Item model number: 318715/02#3/39, Date first listed on Amazon: August 20, 2013, Average Customer Review: 3.0 out of 5 stars 1 customer review
Product brand: Keddo
Target attributes: Heel Height
Answer: attribute: heel height
value: flat
source: product title