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: Breckelle's ED32 Women Leatherette Peep Toe Hollow Out Slingback Mule Stiletto Sandal
Product description: Designed with leatherette upper, peep toe, slim hollow out form, single sole, padded insole, covered stiletto heel and slingback closure.
Product feature: Leatherette (man-made), Measurement (tested sz 6; approx.): Heel 4" Toe 2", Sole / Padding: Synthetic non-skid sole / cushioned foot bed with padded insole, Closure: Slingback, Fit: True to size, Condition: Brand new with original or Alrisco shoe box, Product Dimensions: 10 x 10 x 4 inches, Shipping Weight: 1.5 pounds, ASIN: B01CTEDES4, Item model number: breckelles_sylvia11pu_blu_10, Date first listed on Amazon: April 7, 2016, Average Customer Review: 2.0 out of 5 stars 1 customer review
Product brand: Breckelle's
Target attributes: Heel Height
Answer: attribute: heel height
value: stiletto
source: product description
attribute: heel height
value: stiletto
source: product title