Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Paper Denim & Cloth Men's Paxton Short Sleeve V-Neck Pocket T-Shirt
Product description: Garment dye short sleeve v neck tee with chest pocket
Product feature: 100% Cotton, Imported, Machine Wash, Soft heavy slub jersey, Denim rivet detail at chest pocket, Ribbed cuff, Signature paper denim j stitch detail at chest pocket, Ladder stitch detailing at hem and sleeve opening, Package Dimensions: 12.7 x 11 x 0.7 inches, Shipping Weight: 10.4 ounces, ASIN: B01CTC9GAG, Item model number: DT911CBLK, Date first listed on Amazon: April 26, 2016, Average Customer Review: 3.6 out of 5 stars 12 customer reviews
Product brand: paperdenim&cloth
Target attributes: Neckline
Answer: attribute: neckline
value: v-neck
source: product title
attribute: neckline
value: v neck
source: product description