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: Trunk Candy Long Hair Don't Care Boy's Tri-Blend Crew Neck T-Shirt
Product feature: Combed Ringspun Cotton / Polyester / Rayon, Classic Cut Youth Crew Neck T-Shirt, Premium Tri-Blend Fabric, Original Trunk Candy Clothing, Printed in the USA, Free Standard Shipping, Shipping Information: View shipping rates and policies, ASIN: B01E4H11N4, Item model number: 117153, Date first listed on Amazon: April 11, 2016, Average Customer Review: 5.0 out of 5 stars 3 customer reviews
Product price: $17.99
Product brand: Trunk Candy
Target attributes: Neckline
Answer: attribute: neckline
value: crew neck
source: product title
attribute: neckline
value: crew neck
source: product feature