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: 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

Answer: yes


Question: Context: #ifidieinpolicecustody look under my fingernails. The skin of the person who killed me will be there...— Charles M. Blow (@CharlesMBlow) July 18, 2015 Question: what evidence is under the fingernails? Answer: 21

Answer: no


Question: Context: @cnni I still follow the tip of nursery rhyme ''Early to bed and early to rise'' and get a good night's sleep— Reyhan Fayyaz (@rehanfayyazkhan) March 14, 2016 Question: which tip do people still  follow? Answer: nursery rhyme tip

Answer:
yes