In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify this question-answer pair into two categories: (1) "yes" if the given answer is right for question, and (2) "no" if the given answer is wrong for question.

Example Input: Context: 9 yr old Jacobeth needs urgent med-evac for operation, hurt by falling roof which killed her mother,brother #Vanuatu Ivan Watson (@IvanCNN) March 17, 2015 Question: how did 9 year old jacobeth get hurt? Answer: the effort of firefighters
Example Output: no

Example Input: Context: An exceptional performance from Dimitrov, who knocks out defending champ Murray 6-1 7-6 6-2 to reach his 1st Slam SF Wimbledon (@Wimbledon) July 2, 2014 Question: who lost to dimitrov? Answer: murray
Example Output: yes

Example Input: Context: That's what I call a team effort! Everyone played their part this week, so proud to be a part of #TeamEurope. Captain McGinley = phenomenal— Rory Mcilroy (@McIlroyRory) September 28, 2014 Question: what is rory proud to be a part of? Answer: team europe
Example Output:
yes