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.

Input: Consider Input: 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

Output: yes


Input: Consider Input: Context: Today's UN resolution made it clear: the world won't accept #Russia's illegal annexation of #Crimea. #UnitedforUkraine— Samantha Power (@AmbassadorPower) March 27, 2014 Question: *there is no tweet shown Answer: *there is no tweet shown

Output: yes


Input: Consider Input: Context: "They really will pull the thread that unravels the entire system" @SenStabenow on #GOP repealing Obamacare OutFrontCNN (@OutFrontCNN) January 5, 2017 Question: what might be appealed according to outfrontcnn? Answer: obamacare.


Output: yes