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: Hippie Backpack | Hippy Bag Festival Rucksack Bag for Women
Product feature: Package Dimensions: 12.6 x 12.5 x 2.4 inches, Shipping Weight: 11.4 ounces, ASIN: B00IL5U5Y2, Date first listed on Amazon: June 13, 2016, Average Customer Review: 3.4 out of 5 stars 3 customer reviews
Product brand: Hippie Bags
Target attributes: Material
Answer: attribute: material
value: None
source: None