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: Paris Hilton is a smart woman! And I mean it. She did this on purpose for PR purposes #NelsonMandela AEK (@influxTR) December 6, 2013 Question: who is the subject of her tweet? Answer: nelson mandela dying.
Example Output: yes

Example Input: Context: Exclusive: Britney in a new interview for the Israeli TV about her playback issue! Tsur Eden (@Stan4Godney) June 27, 2017 Question: who is in a new interview for her playback issue? Answer: left hand
Example Output: no

Example Input: Context: For the first time since 1990, Argentina will contest a World Cup semifinal: #CNNWorldCup CNN Football Club (@CNNFC) July 5, 2014 Question: when did argentina go in world cup last? Answer: marty kudelka
Example Output:
no