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: I Already Want To Take A Nap Tomorrow Crewneck T-Shirt (Heather Gray, XXL)
Product feature: Product Dimensions: 4 x 8 x 1 inches, Shipping Weight: 6.4 ounces, ASIN: B00K0MSH58, Date first listed on Amazon: June 12, 2016, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: Printopoly
Target attributes: Neckline
Answer: attribute: neckline
value: crewneck
source: product title