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.

Ex Input:
Context: History is made! #MontrealProtocol countries agree to curb powerful greenhouse gases in largest climate breakthrough since Paris. 🌍🌎🌏 UN Environment (@UNEP) October 15, 2016 Question: what did @montrealprotocol countries agree to? Answer: curb greenhouse gases

Ex Output:
yes

Ex Input:
Context: WATCH "MAKING OF A MURDERER" on @Netflix immediately. RainnWilson (@rainnwilson) December 28, 2015 Question: what kind of car did alex ovechkin get? Answer: honda

Ex Output:
no

Ex Input:
Context: An #IranAir #B747 "Freighter" being loaded at #Shiraz Airport with #food shipments for #Qatar. #B747F #cargo Iran Air (@IranAir_IRI) June 10, 2017 Question: what prize was not mentioned in the article? Answer: pulitzer

Ex Output:
no