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: Van Heusen Mens Long Sleeve Slim Fit Twill Shirt. 13V0384 Large White
Product description: This great quality dress shirt is something every man needs in his wardrobe. Once you try this shirt, you will never overpay again for similar, higher priced but lower quality shirts from big brand names and boutiques. Leave some cash in your pocket and look great! This shirt comes in a great range of sizes.
Product feature: Package Dimensions: 14.3 x 7.6 x 1.9 inches, Shipping Weight: 11.2 ounces ( View shipping rates and policies ), ASIN: B00U1S0DT4, Item model number: 13V0384, Date first listed on Amazon: February 26, 2015, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product price: $33.95
Target attributes: Neckline
Answer: attribute: neckline
value: dress shirt
source: product description