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: Katy Perry rocking the Wii safety strap during the halftime show. #SuperBowl Funny Or Die (@funnyordie) February 2, 2015 Question: who was wearing a safety strap? Answer: katy perry
Example Output: yes

Example Input: Context: The worst commercial goes to @CocaCola, press one for English! #tcot #SuperBowlXLVIII — Alexandra Foster (@KAFosterSowell) February 3, 2014 Question: what did she think of the @cocacola commercial? Answer: the bachelorette
Example Output: no

Example Input: Context: RT @Atlanta_Traffic: Traffic NOT MOVING on I-75 in spots btwn #Acworth & #Cartersville HEAVY snow, major crashes NWS Atlanta (@NWSAtlanta) February 25, 2015 Question: why is the traffic not moving? Answer: a large amount of snow.
Example Output:
yes