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: Gigabyte Q2532N-CF1 15.6-Inch Notebook Computer
Product description: The 15.6-inch GIGABYTE Q2532N-CF1 Notebook PC is the perfect choice for everyday computing, satisfying all needs for study, work and play. The solid design guarantees durability and makes daily tasks easier and more fun! Featuring a 2nd generation Intel Core i5 series processor, the Q2532N-CF1 provides outstanding performance. The NVIDIA GeForce GT 540M graphics card provides an excellent visual experience and comes with Optimus technology for longer-lasting battery life. Other exciting features include USB 3.0 and HDMI. With a fashionably designed attractive rippling pattern, the Q2532N-CF1 is a stylish choice in mobile computing.
Product feature: Intel Processor
Product brand: Gigabyte
Target attributes: Number of Cores
Answer: attribute: number of cores
value: None
source: None