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: LG H955 Unlocked G Flex 2 Cell Phone, 16 GB Internal Memory (Black)
Product description: Description change to:PRODUCT : LG G FLEX 2 4G/LTE SIMFREE FACTORY UNLOCKED CELL PHONE COLOUR : BLACK MEMORY : 16GB MODEL NO : H955 SIMCARD TYPE : MICRO-SIM FREQUENCIES : COMPATIBLE TO USE WITH NETWORK SIM CARDS THAT WORKS ON 2G bands GSM 850 / 900 / 1800 / 1900 LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) IMPORTANT : PLEASE CHECK WITH YOUR NETWORK PROVIDER THE COMPATIBILITY BEFORE YOU BUY.
Product feature: Android OS, v5.0.1 (Lollipop), upgradable to v5.1.1 (Lollipop), Quad-core 1.5 GHz Cortex-A53 & Quad-core 2 GHz Cortex-A57, Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot, 13 MP, 4128 x 3096 pixels, laser autofocus, optical image stabilization, dual-LED flash, Non-removable Li-Po 3000 mAh battery
Product brand: LG
Target attributes: RAM
Answer: attribute: ram
value: None
source: None