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: 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: God bless the Khan's who said what so many of us want to say. God bless them and their son. #DNCinPHL— Suhaib Webb (@ImamSuhaibWebb) July 29, 2016 Question: where did frances mcdormand give his speech? Answer: the golden globes
Example Output: no

Example Input: Context: This is now a record scoreline in a #WorldCup semi-final. Maybe we can make it an unbreakable record? #BRAGER 0-6 Germany (@DFB_Team_EN) July 8, 2014 Question: which round of the world cup is this game in? Answer: semi-final round
Example Output:
yes