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.

Input: Consider Input: Context: Emma Watson asks for barricade to be removed so she can greet marchers. This is something you don't see every day. # Julian Routh (@julianrouth) January 21, 2017 Question: who does she want to greet? Answer: marchers

Output: yes


Input: Consider 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

Output: no


Input: Consider Input: Context: What I gotta do to please you bastards I&#39;m a 20 year old just living life as you did when u where twenty but in extraordinary circumstances— Liam Payne (@Real_Liam_Payne) January 19, 2014 Question: how old does liam say he is? Answer: 20


Output: yes