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: "9 killed in Waco biker gang shootout - where are the white leaders decrying this white-on-white violence?" #stuffthemedianeversays John Fugelsang (@JohnFugelsang) May 18, 2015 Question: how many were killed? Answer: 9
Example Output: yes

Example Input: Context: Happy Birthday Nelson Mandela. You teach us tolerance, forgiveness and simple kindness. #Saint Kim Engelbrecht (@kimengelbrecht) July 18, 2012 Question: what does nelson mandela teaches us? Answer: inclusiveness
Example Output: no

Example Input: Context: Life is hard in Mendota Ca. Reports of 35-40% unemployment. But I really do like it here. Still has spunk/hope to it. John D. Sutter (@jdsutter) June 18, 2014 Question: what is the reported level of unemployment? Answer: presents
Example Output:
no