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.

Ex Input:
Context: I dont blame Derrick Rose for being cautious but I fully expected him to be back by now. Seems like it's largely psychological at this point — Josh Lewenberg (@JLew1050) March 8, 2013 Question: what is derrick ross doing? Answer: being cautious

Ex Output:
yes


Ex Input:
Context: Today, nearly 200 countries took an historic step to #ActOnClimate for future generations by phasing down HFCs: The White House (@WhiteHouse) October 15, 2016 Question: nearly 200 countries took steps to do what? Answer: putin

Ex Output:
no


Ex Input:
Context: I'm not changing nothing on this tattoo. This year was a great one and this is always gonna be a memory. #ALLinCLE— Lil Geeky (@Lonniedoe) June 17, 2015 Question: what was great for him? Answer: this year.

Ex Output:

yes