Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: ASUS ROG GL752VW 17.3" Notebook for Gamers (Intel Core Skylake i7-6700HQ, 16GB RAM, 120GB SSD + 1TB HDD, NVIDIA GTX 960M 4GB) - Best Full HD Windows 10 Gaming Laptop Computer
Product description: Processor & Memory: Intel Core i7-6700HQ Processor 2.6GHz 16GB DDR4 RAM Drives: 1TB 5400RPM SATA Hard Drive + 128GB Solid State Drive DVD-RW (Writes to DVD/CD) Operating System: Microsoft Windows 10 Communications: Wireless-AC WLAN + Bluetooth 4.0 10/100/1000 Ethernet LAN (RJ-45 Connector) Integrated HD Webcam Graphics & Video: 17.3" FHD (1920 x 1080) matte Display 4GB NVIDIA GTX 960M Graphics Keyboard: Backlit Keyboard Ports & Slots: 1x USB 3.1 - Type C (Gen1) 1x USB 3.0 2x USB 2.0 1x HDMI 1x Microphone-In Jack 1x Headphone-Out Jack 1x Media Card Slot 1x mini Display Port
Product feature: Intel Core i7-6700HQ Processor 2.6GHz, 16GB DDR4 RAM, 1TB 5400RPM SATA Hard Drive + 128GB Solid State Drive, 17.3" FHD (1920 x 1080) matte Display, 4GB NVIDIA GTX 960M Graphics
Product brand: Asus
Target attributes: Processor Speed
Answer: attribute: processor speed
value: 2.6ghz
source: product feature
attribute: processor speed
value: 2.6ghz
source: product description