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: Kurt Helin @basketballtalkBrilliant dig: Knicks fans chant “Derek Fisher” as Kings’ Matt Barnes inbounds ball , 4:18:07 AM Question: what are the fans chanting? Answer: derek fisher
Example Output: yes

Example Input: Context: Remember they aren't just students...They are KIDS who deal with a lot as they grow up. #iwishmyteacherknew Steve Mefford (@Meffscience) April 12, 2015 Question: what does steve mefford wish for? Answer: he wished his teacher new knew something.
Example Output: yes

Example Input: Context: Amazing hike with Dad @SenJohnMcCain this morning. Thank you all for your best wishes! Meghan McCain (@MeghanMcCain) July 22, 2017 Question: who had an amazing hike with dad? Answer: sawyer sweeten
Example Output:
no