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: Samsung Galaxy Light SGH-T399N Android 4G-LTE Metro PCS Smartphone Brown
Product description: The Galaxy LightTM will give you more ways to connect both to it and with the outside world. S VoiceTM turns your phone into your personal assistant and responds to every voice command. GPS Navigation turns your phone into an invaluable travel partner. Bluetooth technology connects you to hands-free kits, headsets, keyboards and more. Have access to both personal and corporate email. And with full Google Mobile services integration, you have access to voice search and Google Talk. You'll feel you've never been so connected to a phone before.
Product feature: Android 4.2.2 system (Jelly Bean), Fast 1.4Ghz processor, 4G-LTE,, 4" Touchscreen, 5 Megapixel Camera, Front Facing Camera, LED flash, Storage Capacity 8 GB, Up to 32 GB Expandable Memory, GPS with Navigation Capability, Conference Calling, 3.5mm Audio Jack, USB Tethering, WiFi Calling and Much more..
Product price: $53.95
Product brand: Samsung
Target attributes: SIM Slots
Answer: attribute: sim slots
value: None
source: None