Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Star Vixen Women's Plus Size Long Sleeve Fit N Flare Scoop Neck V Back Ity Knit Dress
Product description: Long sleeve fit n flare scoop neck v back ITY knit dress
Product feature: 92% Polyester, 8% Spandex, Made in the USA and Imported, Hand Wash, Flattering Fit-n-Flare silhouette, Sexy yet covered, Easy care/no wrinkles, Package Dimensions: 1 x 1 x 1 inches, Shipping Weight: 1 pounds ( View shipping rates and policies ), ASIN: B01EM6C6J0, Item model number: 3877-ITX, Date first listed on Amazon: August 22, 2016, Average Customer Review: 3.6 out of 5 stars 4 customer reviews
Product price: $7.78 - $18.00
Product brand: Star Vixen
Target attributes: Neckline
Answer: attribute: neckline
value: scoop neck
source: product description
attribute: neckline
value: scoop neck
source: product title