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: Mens Bemidji State Beavers Primary Logo O-neck Short Sleeve Cool Shirts
Product feature: 100% cotton, ASIN: B01GFVQX44, Date first listed on Amazon: June 1, 2016, Average Customer Review: 1.0 out of 5 stars 1 customer review
Product brand: Unknown
Target attributes: Neckline
Answer: attribute: neckline
value: o-neck
source: product title