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: Softscience Women's Firefly Lace Up Fashion Sneakers
Product description: Our womens ultra-lightweight Firefly brings supreme comfort to those who prefer a slimmer shoe. With a more streamlined design, the Firefly offers a customizable and secure fit for all-day support. The laces allow you to tailor the feel, making it ideal as a lightweight travel shoe or for everyday wear.
Product feature: Canvas, Our womens ultra-lightweight Firefly brings supreme comfort to those who prefer a slimmer shoe, With a more streamlined design, the Firefly offers a customizable and secure fit for all-day support, The laces allow you to tailor the feel, making it ideal as a lightweight travel shoe or for everyday wear, Shipping Weight: 3 pounds, ASIN: B00WIJ63XE, Date first listed on Amazon: April 22, 2015, Average Customer Review: Be the first to review this item
Product brand: SoftScience
Target attributes: Type
Answer: attribute: type
value: shoe
source: product description
attribute: type
value: shoe
source: product feature