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: Happy Birthday Nelson Mandela. You teach us tolerance, forgiveness and simple kindness. #Saint— Kim Engelbrecht (@kimengelbrecht) July 18, 2012 Question: whose's birthday is it? Answer: nelson mandela
[EX A]: yes

[EX Q]: Context: So @Drake proves that kissing @Madonna is about as ghastly as I always imagined it would be: Piers Morgan (@piersmorgan) April 13, 2015 Question: how is it kissing madonna? Answer: ghastly
[EX A]: yes

[EX Q]: Context: strive to be a better muslim, be greedy with your time, devote most of it to the Almighty for it is his satisfaction that you need #islam— Ghuraba (@Al_firdausiA) March 11, 2013 Question: what is the kennedy center honor? Answer: lifetime achievement in social causes
[EX A]:
no