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: 10 pc Premium Quality Black Velvet Hangers - Space Saving Thin Profile, Non-slip Padded with Notched Shoulders for Dresses and Blouses – Strong Enough for Coats and Pants
Product description: 10 pc Premium Quality Black Velvet Hangers - Space Saving Thin Profile, Strong, Non-slip Padded with Notched Shoulders for Dresses, Blouses, Skirts, Suits, Coats, Pants, Trousers and other clothes - Men and Women - Satisfaction Guaranteed
Product feature: Premium Quality, Satisfaction Guaranteed, Thin Profile, Strong, Non-slip Velour Padded with Notched Shoulders, Black Velvet Hanger - Good for Blouses and Skirts, Slip Free - Good for Men's and Women's clothes, Heavy Duty Enough for Suits, Coats, Pants, Trousers and other Clothes
Product price: $12.47
Product brand: Popular Design Products
Target attributes: Size
Answer: attribute: size
value: None
source: None