Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Brooks Brothers Big Boys' Non Iron Oxford Stripe Button Down Collar Shirt
Product description: Non-iron single-needle tailoring. Durable cross-stitched button and button-down collar and barrel cuffs.
Product feature: 100% Cotton, Imported, Machine Wash, Button closure, 100% cotton, Package Dimensions: 11.7 x 8.3 x 1.5 inches, Shipping Weight: 10.4 ounces, ASIN: B00DOS4EKM, Date first listed on Amazon: July 30, 2013, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Neckline
Answer: attribute: neckline
value: button down collar
source: product title
attribute: neckline
value: button-down collar
source: product description