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: Emma Watson asks for barricade to be removed so she can greet marchers. This is something you don't see every day. # Julian Routh (@julianrouth) January 21, 2017 Question: who does she want to greet? Answer: marchers

Ex Output:
yes

Ex Input:
Context: Why is easier to find an iPhone then to find a plane? Do they not have more then one tracking device? #8501QS #CNN Catalina Buitano (@CatalinaSheeran) December 29, 2014 Question: what seems to have only one tracking device? Answer: a plane.

Ex Output:
yes

Ex Input:
Context: Words cannot express the depth of our loss. Simone's incredible talent was only surpassed by the size of her heart. G.R.L. (@grl) September 6, 2014 Question: who's incredible talent was surpassed by the size of her heart? Answer: in dayton.

Ex Output:
no