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.
--------
Question: Context: Detroiter walks 21 miles in work commute Detroit Free Press (@freep) February 1, 2015 Question: how many miles did the detroiter walk Answer: 21 miles

Answer: yes

Question: Context: Later today Prince Harry will be revealing his secret in support of @Sentebale #FeelNoShame campaign for #WorldAIDSDay Clarence House (@ClarenceHouse) December 1, 2014 Question: prince harry is taking part in a campaign for which charity? Answer: sentebale

Answer: yes

Question: Context: The Top Model family is deeply saddened by the tragic news of Mirjana Puhar. We love you, Mirjana. Forever. Tyra Banks (@tyrabanks) February 26, 2015 Question: who is saddened by the news? Answer: top model family.

Answer:
yes