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: Did you miss the first half? Here's what it looked like on our live blog: #CNNWorldCup CNN Football Club (@CNNFC) July 8, 2014 Question: who was the world cup against? Answer: van gaal
Example Output: no

Example Input: Context: Pumped to be racing again... Happy with the time tonight right where I wanted to be!!— Michael Phelps (@MichaelPhelps) April 25, 2014 Question: who is pumped to be racing? Answer: michael phelps
Example Output: yes

Example Input: Context: And it's #Halep who will advance to the semifinals (her first SFs at RG), defeating #Kuznetsova 6-2, 6-2. #RG14 Roland Garros (@rolandgarros) June 4, 2014 Question: who will advance to the semifinals? Answer: halep
Example Output:
yes