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: both countries will, perhaps, work together to solve some of the many great and pressing problems and issues of the WORLD!— Donald J. Trump (@realDonaldTrump) January 7, 2017 Question: what is described as having great and pressing problems? Answer: the world
Example Output: yes

Example Input: Context: She reimagines Bratz dolls as real life heroines @MalalaFund @JaneGoodallInst @Waris_Dirie Across Women's Lives (@womenslives) October 9, 2015 Question: what does she do with these dolls Answer: 402mph
Example Output: no

Example Input: Context: asked my lovely lady to marry me! Garrett Billings (@gbillings13) December 25, 2013 Question: what did billings do? Answer: propose.
Example Output:
yes