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: The subject of our PSA is starting to get rape threats on the comments. Can you help by reporting them? Hollaback! (@iHollaback) October 28, 2014 Question: when will there be a chance to beat buzzy cohen on jeopardy? Answer: tomorrow.
Example Output: no

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: He is not getting roasted like with fire lol,they are just gonna make jokes about him #BieberRoast— justin bieber (@biebslikeme) January 20, 2015 Question: how old was mike nichols when he died? Answer: 83
Example Output:
no