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

Input:
Product title: Awesome Since 1989 - 27th Birthday Gift Anniversary T-shirt
Product description: Nowhere else on the internet can you find such a wide variety of tshirts at such an affordable price! We have the largest selection of Uni-Tshirts clothing and funny shirts for you to choose from. All of our t-shirts are made with 100% cotton, extremely comfy to wear, and are guaranteed to last. Wear your shirt with pride!
Product feature: Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester, Imported, Machine wash cold with like colors, dry low heat, Tshirts, Awesome Since 1989 - 27th Birthday Gift Anniversary T-shirt, Lightweight, Classic fit, Double-needle sleeve and bottom hem, Package Dimensions: 10 x 8 x 1 inches, Shipping Weight: 4.8 ounces ( View shipping rates and policies ), ASIN: B07KDFZ3R4, Date first listed on Amazon: February 4, 2016, Average Customer Review: 4.5 out of 5 stars 2 customer reviews
Product price: $19.99
Product brand: Uni-Tshirts
Target attributes: Neckline
Answer: attribute: neckline
value: None
source: None