Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Motorola V80 Unlocked Cell Phone-International Version with No Warranty (Black)
Product feature: This is a tri-band GSM 900/1800/1900 cell phone, Built-in VGA digital camera (640 x 480), MP3/video player; 65,000-color display, Phonebook with 2,000 entries; 5 MB shared memory, Lithium-ion battery with 6 hours talk and 280 hours standby times
Product brand: Motorola
Target attributes: Weight
Answer: attribute: weight
value: None
source: None