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: 200 people at #chicago Mayor Rahm Emanuel's office protesting police handling of black men. #ferguson #cnn billkirkos (@KirkosBill) November 25, 2014 Question: how many people protested at rahm emanuel's office? Answer: 200 people

Answer: yes


Question: Context: .@ChurchOfOccupy @mumbly_joe @raisingbran you CAN catch HIV in a not-yet-symptomatic infected patient. Same with colds. Not #Ebola. — Jane Doe, MD (@DrJaneChi) September 30, 2014 Question: what was macklemore first tricking people into thinking? Answer: that he was a rapper

Answer: no


Question: Context: I'm still trying to calm myself down...— Charles M. Blow (@CharlesMBlow) January 25, 2015 Question: when was the show taped? Answer: before allegations

Answer:
no