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: I am so happy to be in the @usopen finals again after 5 years and I wish Peng a speedy recovery!— Caroline Wozniacki (@CaroWozniacki) September 5, 2014 Question: how long has the tweeter been waiting to return to the finals? Answer: 5 years

Ex Output:
yes


Ex Input:
Context: Did you miss the first half? Here's what it looked like on our live blog: #CNNWorldCup CNN Football Club (@CNNFC) July 8, 2014 Question: who was the world cup against? Answer: van gaal

Ex Output:
no


Ex Input:
Context: Capitol Police are physically removing protesters who are staging a "die-in" in front of McConnell's office Andrew Desiderio (@desiderioDC) June 22, 2017 Question: are capitol police removing people? Answer: what was arie luyendyk talking about

Ex Output:

no