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.

Input: Consider Input: Context: Watch a short video message from our Program Manager in Arkansas. #tornado #arwx Samaritan's Purse (@SamaritansPurse) April 29, 2014 Question: wharf is samaritan' s purse? Answer: a charity organization.

Output: yes


Input: Consider Input: Context: I can't believe the news about Robin Williams. He gave so much to so many people. I'm heartbroken.— Ellen DeGeneres (@TheEllenShow) August 11, 2014 Question: who is heartbroken about robin wiliams? Answer: ellen degeneres

Output: yes


Input: Consider Input: Context: @klustout make it quick. drop it in the tub. better for both of you...— Bill Bishop (@niubi) September 24, 2013 Question: how does bill want you to do it quickly? Answer: pulitzer


Output: no