Given the task definition, example input & output, solve the new input case.
In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.
Example: Context: Our prayers are with the students, educators & families at Independence High School & all the first responders on the scene. #PatriotPride— Doug Ducey (@dougducey) February 12, 2016 Question: at which school were first responders on the scene for? Answer: independence high school
Output: yes
Here, the generated label is 'yes' because the given context is useful in answering the question.

New input case for you: 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 was it not tracked physically via? Answer: location services
Output:
yes