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

Input:
Product title: Vintage Style Hearts Non-Piercing Clip On Nipple Ring - Sold Individually
Product description: Vintage Style Hearts Non-Piercing Clip On Nipple Ring - Sold Individually
Product feature: Vintage Style Hearts Non-Piercing Clip On Nipple Ring, No Piercing Necessary (clip on design), Sold Individually, Shipping Information: View shipping rates and policies, ASIN: B00VVPQGAQ, Date first listed on Amazon: April 9, 2015, Average Customer Review: 2.0 out of 5 stars 1 customer review
Product price: $2.99
Product brand: The Home of Hot Deals
Target attributes: Design
Answer: attribute: design
value: ring
source: product title
attribute: design
value: ring
source: product feature
attribute: design
value: ring
source: product description