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.

Ex Input:
Context: It has been a blessing to know John Glenn and for Connie and me to count him and Annie as mentors and friends. We will miss him. - SB— Sherrod Brown (@SenSherrodBrown) December 8, 2016 Question: what's the only last name mentioned? Answer: glenn

Ex Output:
yes


Ex Input:
Context: It's not easy doing the right thing sometimes!!! Thank you for your love & support Break the Silence of Sexual Abuse! Question: what silence needs to be broken? Answer: the silence regarding sexual abuse

Ex Output:
yes


Ex Input:
Context: It's time to say STOP. Here's my #FlyToFreedom pledge. What's yours? I nominate @amandahoh and @jesstapp to join me! Lauren Moorhouse (@LaurenMoorhouse) October 21, 2015 Question: what was the pledge about? Answer: in the middle of the city

Ex Output:

no