Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Southpole Men's Short Sleeve Embroidered Patch Detail Button Down Shirt
Product description: Short sleeve plaid button down shirt with embroidered patch detail
Product feature: 100% Cotton, Machine Wash, Plaid button down, Short sleeve button down, Package Dimensions: 11.4 x 8.1 x 1.1 inches, Shipping Weight: 6.4 ounces, ASIN: B008135XKK, Item model number: 12321-2301, Date first listed on Amazon: July 20, 2012, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 4.5 out of 5 stars 3 customer reviews
Target attributes: Neckline
Answer: attribute: neckline
value: button down
source: product feature
attribute: neckline
value: button down
source: product title
attribute: neckline
value: button down
source: product description