instruction:
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.
question:
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
answer:
no

question:
Context: The hole in Hermitage HS's Hall of Fame where Darren #Sharper used to be. @ 11 why he's gone @CBS6@ Melissa J. Hipolit (@MelissaCBS6) March 24, 2015 Question: when did playboy feature jenny jackson? Answer: march 1965
answer:
no

question:
Context: Omw back to Ottawa. Had such a good time at the Olympics. But excited to come home again and play some more hockey. Erik Karlsson (@ErikKarlsson65) February 24, 2014 Question: what city should not be worried about ebola? Answer: dallas
answer:
no