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: Trump appears to shove Montenegro PM so he could be in front of NATO group Amanda Wills (@AmandaWills) May 25, 2017 Question: why did trump shove montenegro pm? Answer: to be in front of nato group.
Example Output: yes

Example Input: Context: Supporting a @Marvel fan's cancer fight, stars inc @clarkgregg participate in #CapForStrat 8 — Clark Gregg Reporter (@TheCGReporter) May 15, 2014 Question: who are agents gregg and bennett supporting in #capforstrap? Answer: a marvel fan's cancer fight
Example Output: yes

Example Input: Context: How pathetic for @realdonaldtrump to criticize the president for 9/11. We were attacked & my brother kept us safe.— Jeb Bush (@JebBush) October 16, 2015 Question: what did jeb’s brother do after 9/11? Answer: kept us safe
Example Output:
yes