Detailed Instructions: In this task, you are given a context paragraph of the tweet and question. Your task is to generate right answer of given question based on given context tweet paragraph.
Problem:Context: @MattRosoff Ah: They tracked the UUID of the device to tie multiple Uber accounts to the physical hardware. Not tracked physically via location svcs. Alan Danziger (@alandanziger) April 23, 2017 Question: what portion of the device did they track?
Solution:
uuid