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 Q]: Context: Ticket to ride! Send your name on our #JourneyToMars, starting with #Orion's first flight: NASA (@NASA) October 8, 2014 Question: how do you get a personalized pass? Answer: ssend your name to #journey to mars.
[EX A]: yes

[EX Q]: Context: 6. Other countries need to do more. Shameful that GCC countries are not taking Syrian refugees for example.— Nadim Houry (@nadimhoury) September 3, 2015 Question: what is the sentiment expressed here? Answer: shameful
[EX A]: yes

[EX Q]: Context: So happy to have seen @Philae2014 again before my mission ends later this month...more about my #CometLanding soon! ESA Rosetta Mission (@ESA_Rosetta) September 5, 2016 Question: what is @esa_rosetta going to tweet about soon? Answer: #cometlanding
[EX A]:
yes