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: @ESPNNFL @USAA I've never heard a trumpet sound so beautiful.— Razor Michael (@razor_michael) November 4, 2014 Question: how did the trumpet sound to razor? Answer: nick gordan
Example Output: no

Example Input: Context: A studio needs to pick up @azizansari's #GhostPlane IMMEDIATELY. If not we'll just make a kickstarter. It'll be cheap.— Ian Eastwood (@Ian_Eastwood) December 8, 2014 Question: what does azizansari need for #ghostplane? Answer: a studio.
Example Output: yes

Example Input: Context: #IWishMyTeacherKnew how to do a backflip. Ss challenging me to learn new things. It's exciting! #ChallengeAccepted Cassie Norsworthy (@mrsnorsworthy) April 17, 2015 Question: what type of challenge was accepted? Answer: how to do a back flip.
Example Output:
yes