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: Acer Aspire V 15 15.6 inch Full HD IPS 1920x1080 Touchscreen Laptop Notebook Intel Core i7-6500U 16GB Memory 500GB Solid State Drive SSD Backlit Keyboard Webcam USB 3.0 802.11ac HDMI Windows 10
Product description: Display 15.6 in Full HD IPS touchscreen 1920 x 1080 /10-finger multi-touch support Processor Intel Core i7-6500U 2.50 GHz with Turbo Boost Technology up to 3.10 GHz Memory 16GB DDR3L 1600 MHz Hard drive size 500GB Solid State Drive SSD Operating system Windows 10 Home, 64-bit Optical drive DVD SuperMulti double layer Media drive SD card reader Audio Dolby Digital Plus Video Intel HD Graphics 520 with shared graphics memory Ports 2 USB 3.0 (1 powered) 1 USB 2.0 HDMI VGA Headphone output/Microphone input combo LAN (10/100/1000) Battery 4-cell lithium-ion Camera Integrated webcam Wireless 802.11ac (Miracast enabled) Bluetooth Yes Color Steel Black
Product feature: 15.6 in Full HD IPS touchscreen 1920 x 1080 /10-finger multi-touch support, Intel Core i7-6500U 2.50 GHz with Turbo Boost Technology up to 3.10 GHz, 16GB DDR3L 1600 MHz /500GB Solid State Drive SSD, 2 USB 3.0 1 powered 1 USB 2.0 HDMI VGA Headphone output/Microphone input combo LAN 10/100/1000, DVD SuperMulti double layer/Bluetooth Windows 10 Home, 64-bit
Product brand: Acer
Target attributes: Processor Brand
Answer: attribute: processor brand
value: intel core
source: product title
attribute: processor brand
value: intel core
source: product feature
attribute: processor brand
value: intel core
source: product description