In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify this question-answer pair into two categories: (1) "yes" if the given answer is right for question, and (2) "no" if the given answer is wrong for question.

Example Input: Context: Did you miss the first half? Here's what it looked like on our live blog: #CNNWorldCup CNN Football Club (@CNNFC) July 8, 2014 Question: who was the world cup against? Answer: van gaal
Example Output: no

Example Input: Context: @_mariareza @mizraimbelman no selfie The secret service was watching our every move— Juan Belman (@juanbelman) July 11, 2014 Question: who was watching juan belman? Answer: secret service
Example Output: yes

Example Input: Context: So sad to hear of passing of Ben Bradlee. One of the proudest moments in my life was being hired by Ben. There'll never be another like him.— Peter Baker (@peterbakernyt) October 22, 2014 Question: who hired peter baker? Answer: ben bradlee
Example Output:
yes