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: Support our work to help the children & families impacted by the USA #tornadoes: Save the Children (@SavetheChildren) April 30, 2014 Question: why have children and families been hurt? Answer: by tornadoes
Example Output: yes

Example Input: Context: We introduce the girls to mentors who are females in STEM and these mentors teach the girls to code #thisisafrica Regina Agyare (@ragyare) September 24, 2014 Question: what are the mentors teaching the girls to do? Answer: code
Example Output: yes

Example Input: Context: World lost a giant.He might b most unique person EVER.Meryl & I were on porch 2 Do Emotional Scene,He Started 2 cry We cried,He Said ACTION— Cher (@cher) November 20, 2014 Question: what is the world now missing? Answer: oman
Example Output:
no