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: VELVET BY GRAHAM & SPENCER Women's Gauzy-Knit Turtleneck Dress
Product feature: 93% Cotton/7% Spandex, Made in US, Machine Wash, Long-sleeve turtleneck dress featuring ruching, Package Dimensions: 18.3 x 11.5 x 2.9 inches, Shipping Weight: 8 ounces, ASIN: B00M4ZOEB0, Item model number: PIETRO02, Date first listed on Amazon: August 22, 2014, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 3.7 out of 5 stars 4 customer reviews
Product brand: Velvet by Graham & Spencer
Target attributes: Neckline
Answer: attribute: neckline
value: turtleneck
source: product feature
attribute: neckline
value: turtleneck
source: product title