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.

Ex Input:
Context: #DemocracySpring sitting in -- said they'll try to enter arena perimeter if not arrested... one delegate turned back Greg Krieg (@GregJKrieg) July 25, 2016 Question: how many delegates were turned back? Answer: one

Ex Output:
yes


Ex Input:
Context: People here are cutting back on groceries to make ends meet. Less water means less farm work. #endangeredriver John D. Sutter (@jdsutter) June 18, 2014 Question: on what are people cutting back? Answer: right part of tail section

Ex Output:
no


Ex Input:
Context: #GER heads for the last four after defeating #FRA. Our on the whistle report: #CNNWorldCup CNN Football Club (@CNNFC) July 4, 2014 Question: who will germany play against in the next match? Answer: @lilyachty

Ex Output:

no