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 think Lleyton #Hewitt deserves a monument in Melbourne park for his fighting spirit and effort every time he plays! Impressive #19Ausopens— victoria azarenka (@vika7) January 20, 2015 Question: why does lleyton #hewitt deserve a monument? Answer: his fighting spirit

Ex Output:
yes


Ex Input:
Context: Today there were terror attacks in Turkey, Switzerland and Germany - and it is only getting worse. The civilized world must change thinking!— Donald J. Trump (@realDonaldTrump) December 19, 2016 Question: what must the civilized world do according to trump? Answer: change thinking

Ex Output:
yes


Ex Input:
Context: The NHL family is sad to learn of the passing of longtime hockey fan Alan Thicke. Our thoughts are with his family and friends. NHL (@NHL) December 14, 2016 Question: why nhl family is sad ? Answer: nytimes and the washington post

Ex Output:

no