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: HTC 10 32GB Single SIM Android Smartphone - Factory Unlocked - International Version with No Warranty (Topaz Gold)
Product description: PRODUCT : HTC 10 SINGLE-SIM ANDROID FACTORY UNLOCKED 4G/LTE SMARTPHONE, COLOUR : TOPAZ GOLD, MEMORY : 32GB, MODEL : HTC 10 - SINGLE-SIM, SIMCARD TYPE : NANO-SIM, FREQUENCIES : COMPATIBLE TO USE WITH NETWORK SIM CARDS THAT WORKS ON, 2G : GSM 850 / 900 / 1800 / 1900 and/or, 3G : 850(B5) / 900(B8) / 1900(B2) / 2100(B1) and/or, 4G : LTE 700(B28) / 800(B20) / 850(B5) / 900(B8) / 1500 (B32) / 1800(B3) / 2100(B1) 2600(B7), : TD-LTE 1900(B39) / 2300(B40) / 2600(B38), IMPORTANT : PLEASE CHECK WITH YOUR NETWORK PROVIDER THE COMPATIBILITY BEFORE YOU BUY., IN THE BOX :, 1 X HTC 10 32GB Single-SIM Smartphone, 1 X in-Built Battery, 1 X PC Connecting Cable, 1 X Wired Stereo Head Set, 1 X Mains / Wall / Travel Charger, 1 X Documentation, 1 X Interior Retail Packing, 1 X Retail Box with IMEI Number
Product brand: HTC
Target attributes: RAM
Answer: attribute: ram
value: None
source: None