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.

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
no

Context: End of the fixture! Here's a tweet to save in your Favourites: We're #UCL finalists! Atléticos, we're going to Lisbon! #LisbonRedAndWhite :)— Atleti English (@atletienglish) April 30, 2014 Question: what should you be careful of? Answer: wishing
no

Context: Iran's security and stability depend on its own people, who — unlike the peoples of Trumps regional "bffs"—have the right to vote and to protest. These hard-earned rights will be protected, and infiltrators will not be allowed to sabotage them through violence and destruction.— Javad Zarif (@JZarif) January 2, 2018 Question: what does iran’s security depend on? Answer: it’s own people

yes