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: So very sad to hear the awful news about Anton Yelchin. Such a fine actor with his whole career ahead of him. He will be remembered always.— Mark Hamill (@HamillHimself) June 19, 2016 Question: who was sad to hear some awful news? Answer: coordinated blood bank donations.
Example Output: no

Example Input: Context: what people expect their pictures to look like tonight vs what they will look like #SuperBloodMoon So Damn True! (@SayingForFemale) September 28, 2015 Question: how often does this happen Answer: patty duke
Example Output: no

Example Input: Context: Vets saw a fetus on Mei Xiang's ultrasound today. Paws crossed 4 viable pregnancy #PandaStory National Zoo (@NationalZoo) August 19, 2015 Question: where is mei xiang located? Answer: at the national zoo
Example Output:
yes