Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Nike Paul Rodriguez CTD SB Men Round Toe Synthetic White Sneakers
Product description: Nike Mens Paul Rodriguez CTD SB Summit White/Black-Pre Platinum Synthetic
Product feature: Rubber sole, nike paul rodriguez CTD SB mens trainers 654863 sneakers shoes, Shipping Weight: 3 pounds ( View shipping rates and policies ), ASIN: B00FN4N398, Date first listed on Amazon: October 4, 2013, Average Customer Review: 1.9 out of 5 stars 2 customer reviews
Product price: $99.99
Target attributes: Toe Style
Answer: attribute: toe style
value: round toe
source: product title