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: BONNIBEL DEBBY-1 Women's Criss Cross Ankle Strap Wedge Pumps One Size Bigger, Color:NAVY, Size:10
Product feature: Importado, Package Dimensions: 11.6 x 7.4 x 4 inches, Shipping Weight: 1.45 pounds, ASIN: B013FMKKWC, Item model number: DEBBY-1, Date first listed on Amazon: March 3, 2016, Average Customer Review: 4.0 out of 5 stars 1 customer review
Product brand: BONNNIBEL
Target attributes: Heel Style
Answer: attribute: heel style
value: wedge
source: product title