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: Old Glory Washington LGBT Gay Pride Rainbow Black Adult Tank Top
Product description: This black 100% cotton, classic fitted, basic adult tank top is perfect for the next Pride Parade. Featuring a rainbow filled Washington state shape.
Product feature: Officially Licensed Merchandise, Music, Sports & Entertainment Merchandise, Quality Products, Detailed Graphic Artwork Design, Shipping Information: View shipping rates and policies, ASIN: B00U7U8M6M, Date first listed on Amazon: March 3, 2015, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product price: $16.95 - $19.95
Product brand: Old Glory
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: tank top
source: product description
attribute: sleeve style
value: tank top
source: product title