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: The WALL, which is already under construction in the form of new renovation of old and existing fences and walls, will continue to be built.— Donald J. Trump (@realDonaldTrump) September 14, 2017 Question: what does donald trump claim is already being built? Answer: the wall

Ex Output:
yes


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: Brett McMurphy @McMurphyESPNAfter 2nd year of 4-year deal, Camping World ends its naming rights sponsorship w/Independence Bowl, Shreveport Times reports1/20/2017, 10:17:53 PM Question: how long was the deal supposed to last? Answer: during the superbowl halftime

Ex Output:

no