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.

Q: Context: Can't sleep Too busy worrying about the controllers strike. Would prefer not to spend my holiday in the Airport. #airtrafficstrike— mafleen (@mafleen) June 25, 2014 Question: in what hospital is the msf team working? Answer: haradh hospital

A: no
****
Q: Context: Three finalists could return to Cleveland early next week to make presentations w/ agent and LeBron James present, source tells Yahoo.— Adrian Wojnarowski (@WojYahooNBA) July 4, 2014 Question: how many finalist return Answer: three

A: yes
****
Q: Context: 805 million people suffer from hunger. Make sure the world knows. #805millionnames w/@WFP Zlatan Ibrahimović (@Ibra_official) February 15, 2015 Question: what should the world know? Answer: millions suffer from hunger

A:
yes
****