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: Katherine Webb doing her best impression of Stefon from SNL after McCarron's fumble. #SugarBowl #OUvsBama — Jason Martinez (@JasonMartinezTV) January 3, 2014 Question: who is doing an impression of stefon from snl? Answer: katherine webb
Example Output: yes

Example Input: Context: My challenge is to get to #Rome only using APPs. Any suggestions for good #hotel APPs - still need to book somewhere to stay! #travel #tech— Ayesha Durgahee (@AyeshaDurgahee) June 5, 2013 Question: where is ayesha durgahee's going to? Answer: his fighting spirit
Example Output: no

Example Input: Context: #Chicago police preventing protesters from crossing into the Mag Mile. #cnn #EricGarner Kyung Lah (@KyungLahCNN) December 6, 2014 Question: which police was preventing protestors from mag mile? Answer: president h.w. and mrs. bush
Example Output:
no