Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Blancho Men Lace-up Style Slip-On Loafer Black
Product description: Fashion and stylish design. Easy to match. Better relationship of quality and price. Because the foot is three-dimensional, any two-dimensional measuring tool, such as a ruler or Bannok device, can only approximate your true shoe size. Please also keep in mind the manufacturers use different lasts to construct their shoes, and sizing may vary accordingly.
Product feature: Fashion and stylish design., Soft and comfortable., Easy to match., Perfect for everyday wear., Better relationship of quality and price.
Product brand: Blancho Bedding
Target attributes: Heel Height
Answer: attribute: heel height
value: None
source: None