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: The Doors Band Very 100% Cotton RoyalBlue T Shirts For Adult Size L
Product feature: QUICKLY, ASIN: B019GFAJOQ, Date first listed on Amazon: December 17, 2015, Average Customer Review: 3.0 out of 5 stars 1 customer review
Product brand: HUASH
Target attributes: Neckline
Answer: attribute: neckline
value: None
source: None