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.

Input: Consider 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

Output: yes


Input: Consider Input: Context: Joe Biden's having a scotch right now while Paul Ryan's mom is putting his "debate participation" certificate on the refrigerator. #vpdebate— Buck (@buck4itt) October 12, 2012 Question: what do we need a full transition to? Answer: clean energy

Output: no


Input: Consider Input: Context: Would Alexander the Great have conquered the world if he 'dialed it back'? -Kenny Powers— Brittany Furlan (@BrittanyFurlan) June 23, 2014 Question: what did shane west say the film is gonna be? Answer: tight


Output: no