Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: HP Touchsmart 15-r264dx 15.6" Touch Screen Laptop-5th Gen Intel Core i3 Processor/ 6GB Memory / 750GB HD / DVD±RW/CD-RW / Webcam / Windows 8.1 64-bit (Certified Refurbished)
Product description: Watch movies, browse Web content and more with this HP 15-r264dx laptop, which features a 15.6" touch screen with 1366 x 768 resolution for easy navigation and clear images. The 750GB hard drive provides serviceable storage for important digital files., 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 manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty, 5th Gen Intel Core i3-5010U Processor with Intel HD Graphics 5500 - Windows 8.1 64-bit / Wireless LAN 802.11b/g/n, 15.6" LED-backlit high-definition capacitive touch-screen display, 6GB DDR3L SDRAM / 750GB hard drive, DVDRW/CD-RW / HP TrueVision high-definition webcam
Product brand: HP
Target attributes: Weight
Answer: attribute: weight
value: None
source: None