In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.

Example Input: Context: Hey everybody, thanks for your concern. We're all safe & doing well in the Russian segment. Follow @Nasa for updates on @Space_Station today— Sam Cristoforetti (@AstroSamantha) January 14, 2015 Question: who balked on conditions? Answer: munchak
Example Output: no

Example Input: Context: .The United States is raising this unprofessional incident with Russia in the appropriate diplomatic and official channels. 2/2— U.S European Command (@US_EUCOM) April 11, 2015 Question: what is the united states doing Answer: raising this unprofessional incident with russia
Example Output: yes

Example Input: Context: Today over 500,000 people have watched my videos and streams. 90% are @realDonaldTrump supporters, none want war with Syria. #NoMoreWars— Mike Cernovich 🇺🇸 (@Cernovich) April 7, 2017 Question: anaconda would have been nominated for the two best what? Answer: choreo and vid of the year
Example Output:
no