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: A4: Investors want to see a prototype, build something before you ask for money. #CNNAfrica— Erik Hersman (@whiteafrican) January 14, 2015 Question: who wants to see a prototype? Answer: lebron
Example Output: no

Example Input: Context: One of the dumber and least respected of the political pundits is Chris Cillizza of the Washington Post @TheFix. Moron hates my poll numbers— Donald J. Trump (@realDonaldTrump) May 12, 2015 Question: where does chris cillizza work? Answer: the washington post
Example Output: yes

Example Input: Context: 5 years in 5 seconds. Darren Booth (@darbooth) January 25, 2013 Question: how many characters is this tweet? (excluding link) Answer: 21
Example Output:
yes