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: Sierra Socks Men's Crew Cotton Solid Vibrant Colorful Seamless Toe Socks 3 Pair Pack
Product feature: 75% Cotton, 23% Nylon, 2% Spandex, Machine wash cold with like color. Only non-chlorine bleach when needed. Tumble dry low heat., Seamless Toe. Meaning no stitching along the toe ridge line., Comfortable Cuff & Vibrant Solid Colors, Exceptional quality., You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition., Read the full returns policy, Go to Your Orders to start the return, Print the return shipping label, Ship it!, Shipping Weight: 5 ounces ( View shipping rates and policies ), ASIN: B01255GYFC, Date first listed on Amazon: July 20, 2015, Average Customer Review: 4.1 out of 5 stars 9 customer reviews
Product price: $10.99
Product brand: Sierra Socks
Target attributes: Style
Answer: attribute: style
value: crew
source: product title