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

Input:
Product title: Port Authority Tall Short Sleeve Easy Care Shirt
Product description: This comfortable wash-and-wear shirt is indispensable for the workday. Wrinkle resistance makes this shirt a cut above the competition so you and your staff can be too. | 4.5-ounce, 55/45 cotton/poly Button-down collar Dyed-to-match buttons Patch pocket Box back pleat White, Athletic Gold, Texas Orange, Red, Burgundy, Coffee Bean, Light Blue, Navy, Classic Navy, Steel Grey, Purple and Black have a Light Stone contrast neckband. Light Stone and Royal have a Classic Navy contrast neckband. Dark Green has a Navy contrast neckband.
Product feature: cotton-poly, 4.5-ounce, 55/45 cotton/poly., Button-down collar., Dyed-to-match buttons., Patch pocket., Box back pleat., Shipping Information: View shipping rates and policies, ASIN: B014W0ZJU4, Item model number: TLS508, Date first listed on Amazon: September 4, 2015, Average Customer Review: 4.4 out of 5 stars 8 customer reviews
Product price: $17.09 - $32.07
Product brand: Port Authority
Target attributes: Neckline
Answer: attribute: neckline
value: button-down collar
source: product feature
attribute: neckline
value: button-down collar
source: product description