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.

Q: Context: RT @FastCompany: Mercedes-Benz just dreamed up the first tempting self-driving car. #CES2015 Mercedes-Benz USA (@MBUSA) January 6, 2015 Question: who dreamed up a tempting car? Answer: mercedes-benz

A: yes
****
Q: Context: Pumped to be racing again... Happy with the time tonight right where I wanted to be!!— Michael Phelps (@MichaelPhelps) April 25, 2014 Question: who is pumped to be racing? Answer: michael phelps

A: yes
****
Q: Context: @CarolCNN #EbolaQandA Why not ban entry by anyone who had been in affected African? Quarantine full contamination period symptoms or not.— Harv (@HPutt) October 1, 2014 Question: who are they suggesting we ban? Answer: anyone who had been an affected african

A:
yes
****