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.

[EX Q]: Context: Mr Cohen, I would not be surprised is Hillary is somehow behind this. Clinton's play dirty tricks when desperate. californiagirl*10 (@natashalarebel) January 2, 2016 Question: who is this tweet about? Answer: hillary clinton
[EX A]: yes

[EX Q]: Context: Best bar banner ever? Likely. Check it out, @BroBible. #brotips Fireball Whisky (@FireballWhisky) January 30, 2015 Question: just wait till who gets home? Answer: your father
[EX A]: no

[EX Q]: Context: #Westgate6Months The chilling images will remain engrained in my psyche. I at times get a nervous feeling when I'm in a crowded place @cnn— Janet Mbugua (@JanetMbugua) March 19, 2014 Question: what will remain engrained in janet's psyche Answer: chilling images
[EX A]:
yes