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: I am so happy to be in the @usopen finals again after 5 years and I wish Peng a speedy recovery!— Caroline Wozniacki (@CaroWozniacki) September 5, 2014 Question: how long has the tweeter been waiting to return to the finals? Answer: 5 years

Ex Output:
yes


Ex 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

Ex Output:
yes


Ex Input:
Context: OG BJ @bigbruce512I get why Charlie Strong feels the way he does but understand he did a lot for minority coaches by just accepting that position and enduring1/19/2017, 6:19:32 PM Question: who feels a way? Answer: charlie strong

Ex Output:

yes