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

Input:
Product title: Sony VAIO E Series SVE14132CXP 14-Inch Laptop (2.5 GHz Intel Core i3-3120M Processor, 4GB DDR3, 500GB HDD, Windows 8) Pink
Product description: Sony VAIO E Series
Product feature: Intel Core i3-3120M Processor (2.5 GHz), 4GB DDR3 RAM, 500 GB 5400 rpm Hard Drive, 14-Inch Screen, Intel HD Graphics 4000, Windows 8, 6-hour battery life
Product brand: Sony
Target attributes: Refresh Rate
Answer: attribute: refresh rate
value: None
source: None