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: An exceptional performance from Dimitrov, who knocks out defending champ Murray 6-1 7-6 6-2 to reach his 1st Slam SF Wimbledon (@Wimbledon) July 2, 2014 Question: who lost to dimitrov? Answer: murray
Example Output: yes

Example Input: Context: There aren't words to describe the feeling of going through BATTLE with my SISTER. Putting in all the time and effort and energy for 12 weeks, then to be rewarded for it after having the most incredible time?! Unbelievable. This is for you all. Thank you thank you thank you. Jordan Fisher (@Jordan_Fisher) November 22, 2017 Question: who di jordan go through battle with? Answer: 6.
Example Output: no

Example Input: Context: If you ever wanted to play Pacman on the streets of Pittsburgh (or anywhere else), go to Google Maps right now. Zack D'Ulisse (@740JZD) March 31, 2015 Question: what can you play on google maps right now? Answer: pacman
Example Output:
yes