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: Note4 Style JYL N9000 5.7" Android 4.4 3G Smartphone(Dual SIM,Quad Core,WiFi,Dual Camera,1+8G) Color=Black
Product description: Item Code: 1886854, Brand:, Operating System: Android 4.4, Languages: Greek,Indonesian,Vietnamese,Chinese,Simplified Chinese,English,Czech,Polish,Pilipino,Spanish,Thai,Korean,Chinese-traditional,French,Japanese,Italian,Hungarian,Swedish,Slovak,Nepali,Persian,Danish,Russian,Malay,Bulgarian,Arabic,Romanian,Dutch,German,Norwegian,Turkish, Display Size(Inch): 5.7, Screen Resolution: 1280x720, Screen Type: IPS, Screen Size(Inch): 5.6, Camera: 8 MP, Front Camera: 2 MP, Product type: 3G Smartphone, 2G: GSM(850/900/1800/1900MHz), 3G: WCDMA(850MHz),WCDMA(2100MHz), SIM Card Slot: Dual SIM, SIM Card Type: Micro SIM Card, Connectivity: 3G,Bluetooth4.0,OTG,WIFI, GPS: GPS, Features: Micro SIM Card, Hardware Platform: 3G,Bluetooth4.0,OTG,WIFI, CPU Type: GPS, RAM: Flashlight,Long Standby,Replaceable Battery,Air Gesture,Narrow Frame,Ultra-thin,Back Touch, ROM: MT6582, Support extend card: Quad Core, Messaging: 1GB, Ringtones Type: 8G, Format Supported: 64GB, FM Radio: SMS,MMS, Stand-by time: MP3, Talk time: MP3,MP4,PNG,WAV,3GP,AVI,JPEG, Capacity(mAh): YES
Product feature: Note4 Style JYL N9000 5.7" Android 4.4 3G Smartphone(Dual SIM,Quad Core,WiFi,Dual Camera,1+8G) Color=Black, Color=Black, Dual SIM,Quad Core,WiFi,Dual Camera,1+8G, Note4 Style JYL N9000 5.7" Android 4.4 3G Smartphone Unlocked Cell Phone Android Phones, 100% Brand New, 100% Refund/Replacement for quality problem., Note: LightInTheBox is A Registered Trademark in USA since 2013 with no Retailers on Amazon., Unlocked cell phones are compatible with GSM carriers but are not compatible with CDMA Carriers.
Product brand: NOTE
Target attributes: Operating System
Answer: attribute: operating system
value: android
source: product description
attribute: operating system
value: android
source: product feature
attribute: operating system
value: android
source: product title