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: HP EliteBook 8460P 14-inch Notebook PC - Intel Core i5-2520M 2.5GHz 8GB 250GB Windows 10 Professional (Certified Refurbished)
Product description: Everyday computing just got easier with the HP EliteBook 8460P Notebook PC. Enjoy true reliability on the road or at home with a simple, yet powerful value-packed Notebook that gets the job done. Fully loaded with an Intel Core i5-2520M 2.5GHz Processor and 8GB Memory, the EliteBook 8460P makes for a speedy and efficient PC. The 250GB SATA Hard Drive provides ample space to store all crucial data safely. The 14 inch HD LED-Backlit Display provides for crystal clear viewing. The HP EliteBook 8460P is also pre-loaded with Windows 10 Professional (64-Bit) that offers a user-friendly interface., Amazon Renewed is your trusted destination for pre-owned and refurbished products that are inspected and tested to work and look like new. A Renewed supplier who is Amazon-qualified and performance managed, performs a full diagnostic test, replaces any defective parts, and thoroughly cleans the product. The products will have minimal to no signs of wear, no visible cosmetic imperfections when held 12 inches away, and may arrive in a brown or white box with relevant accessories that may be generic., This product comes with a minimum 90-day supplier-backed warranty An Amazon qualified supplier will provide a replacement or refund within 90 days of your receipt if the product does not work as expected. The warranty is in addition to Amazon's standard return policy. Learn more, Shop for smartphones, computers, laptops, tablets, home and kitchen appliances, game consoles, office products, and more on Amazon Renewed .
Product feature: This Certified Refurbished product is tested & certified to look and work like new by a Microsoft Authorized Refurbisher. The product includes accessories, and is backed by a 1 year warranty., Intel Core i5-2520M 2.5GHz Processor, 8GB RAM - 250GB SATA Hard Drive, Windows 10 Professional (64-Bit), 14.0-inch diagonal LED-backlit HD anti-glare display (1366 x 768)
Product price: $47.83
Product brand: HP
Target attributes: Refresh Rate
Answer: attribute: refresh rate
value: None
source: None