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: Obama to Bernie Sanders: "You look like 37,000 donations of $27 each" #WHCD CNN Politics (@CNNPolitics) May 1, 2016 Question: which president made a comment to sanders? Answer: chairman of the senate armed services committee

Ex Output:
no


Ex Input:
Context: Thank you @lenadunham for writing this. Love @lennyletter #freekesha Jessica Chastain (@jes_chastain) February 23, 2016 Question: who is jessica thanking? Answer: lenadunham

Ex Output:
yes


Ex Input:
Context: Stewart Mandel @slmandelThis Arizona UCLA game has been fun!1/21/2017, 11:02:34 PM Question: what two teams were playing against each other? Answer: arizona and ucla

Ex Output:

yes