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 Input: Context: Uh oh! Dad showed up. No more fun anymore. ;-) @KelseyGrammer @twitter— William Shatner (@WilliamShatner) July 1, 2014 Question: who did william shatner say showed up Answer: dad
Example Output: yes

Example Input: Context: Captain Patrick Sondenheimer, the man who tried to save #flight9525, a true hero, is the name I'll remember. #GermanWings #RIP— Verena King (@verenaking) March 28, 2015 Question: what is the name of the man who tried to save the german wings flight? Answer: patrick sondenheimer
Example Output: yes

Example Input: Context: WHY THE HELL IS THERE GONNA BE A TOY STORY 4 THE THIRD ONE TIED IT UP PERFECTLY AND IM STILL CRYING ABOUT IT— jav (@thingsjavsays) November 7, 2014 Question: what is jav upset about? Answer: toy story 4
Example Output:
yes