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.

Input: Consider Input: Context: At 1:21 before launch, a thrust vector control actuator for the Falcon 9's 2nd stage failed to perform as expected. @SpaceX is evaluating. NASA (@NASA) January 6, 2015 Question: what happened to the thrust vector control Answer: it failed

Output: yes

Input: Consider Input: Context: Dear #MemoriesPizza RiskyLiberal (@RiskyLiberal) April 1, 2015 Question: is some one avoiding you to make a point? Answer: my boycotting your business

Output: yes

Input: Consider Input: Context: "I promised I cried I couldn't hold. I suck at love, I need a do-over." -Jay (4:44)"I made you cry when I walked away." -Bey (Sandcastles) . (@beyupdates_) June 30, 2017 Question: who made someone sad when they walked away? Answer: the snow
Output: no