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: The Tonight Show and @JimmyFallon: a match made in real life, for all of us to enjoy, night after night. Fantastic. #FallonTonight— Brad Galli (@BradGalli) February 18, 2014 Question: who enjoys the tonight show and @jimmyfallon Answer: all of us

Ex Output:
yes


Ex Input:
Context: As a result of what happened in Las Vegas this week, we have decided to cancel this coming weekend's shows... Jason Aldean (@Jason_Aldean) October 3, 2017 Question: what city's events caused jason aldean cancel the weekend shows? Answer: wfp

Ex Output:

no