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.
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Question: Context: #Mpeketoni attack has been attributed to Al Shabaab. Military surveillance planes are currently airborne to help police operations. Disaster Operations (@NDOCKenya) June 15, 2014 Question: what is being done to help police operations/ Answer: military surveillance planes

Answer: yes

Question: Context: In the early morning hours cancer took the best friend, partner and pub trivia teammate a guy could ask for. Love you always @nanocindy Jason (@habcous) December 5, 2016 Question: what will happen after the ground teams review their data? Answer: the expansion of beam will continue.

Answer: no

Question: Context: Two more nations are out of the World Cup, two more have kept their dreams alive: #CNNWorldCup CNN Football Club (@CNNFC) June 25, 2014 Question: what cannot occur now? Answer: fun

Answer:
no