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: Oops, Bradlee! Can hear Ben yelling now, "You White House clowns never get it right!" What a wonderful man.— David Gergen (@David_Gergen) October 22, 2014 Question: who is yelling now? Answer: ben
Example Output: yes

Example Input: Context: It takes immense courage to do what Zimbabweans have done today. Your fellow Africans stand with you ✊🏾 #ZimShutDown2016— Ndayi (@alainndayi) July 6, 2016 Question: what did zimbabweans do? Answer: zimshutdown2016
Example Output: yes

Example Input: Context: Dwyane Wade expected to be on a flight back to Miami with LeBron James tonight, league sources told Yahoo. They had been together in Vegas.— Adrian Wojnarowski (@WojYahooNBA) July 11, 2014 Question: who is among worst men ever in senate? Answer: harry reid
Example Output:
no