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.
--------
Question: 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

Answer: yes

Question: Context: Another way to #pdxcarpet @flypdx. Take your own photo with #PDXCarpetIPA and Tweet it at us. Rogue Ales & Spirits (@RogueAles) January 13, 2015 Question: how long has the tweeter been waiting to return to the finals? Answer: 5 years

Answer: no

Question: Context: Despite what you hear in the press, healthcare is coming along great. We are talking to many groups and it will end in a beautiful picture! Donald J. Trump (@realDonaldTrump) March 9, 2017 Question: who is she talking about? Answer: hillary clinton

Answer:
no