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.

Example Input: Context: #Munich Central Station and the railway station Pasing are meanwhile open again. We will remain on site and keep our eyes open.— Polizei München (@PolizeiMuenchen) January 1, 2016 Question: what city is the central station and railway station located in? Answer: munich
Example Output: yes

Example Input: Context: Last night's situation was beyond my control. I apologize to all that showed up, you know that I would never want to disappoint you.— Mariah Carey #MC20 (@MariahCarey) December 3, 2014 Question: what is mariah carey doing now? Answer: all access
Example Output: no

Example Input: Context: MT @idfspokesperson: I just ousted Hamas as the mayor of Gaza on @foursquare!— Andrew Kaczynski (@BuzzFeedAndrew) November 15, 2012 Question: which app is was being used? Answer: foursquare
Example Output:
yes