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: 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: When you can take a selfie with three US Presidents, you do it!! — Tim Mickelson (@goodwalkspoiled) September 28, 2017 Question: how many us presidents did he take a selfie with? Answer: three
Example Output: yes

Example Input: Context: Snow day tomorrow. Stay safe and stay warm, everybody. @CBALincroft Sean Nunan (@NunanCBA) March 5, 2015 Question: when is snow day? Answer: tomorrow
Example Output:
yes