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 Input:
Context: Sigh. Because I'm still having to use the block button for hateful messages. #YesAllWomen Amber Naslund (@AmberCadabra) May 26, 2014 Question: what is amber using to stop hateful messages Answer: the block button

Ex Output:
yes

Ex Input:
Context: #Khartoon - Choices #OmranDaqneesh 5 pulled from under the ruins, #AylanKurdi 3 drowned in the Mediterranean #Syria ALBAIH (@khalidalbaih) August 18, 2016 Question: how many were pulled from the ruins? Answer: five

Ex Output:
yes

Ex Input:
Context: Shocked and saddened by the sudden death of @RealPaulWalker - He did an incredible amount of hands-on charity work. A good person. RIP. Jason O'Mara (@jason_omara) December 1, 2013 Question: what derogatory term did snl call the president? Answer: cheap cracker

Ex Output:
no