instruction:
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: Why Rihanna look like the pink pacman ghost Genesis (@geny_tals) February 9, 2015 Question: what did rihanna look like? Answer: pink pacman ghost
answer:
yes

question:
Context: #NepalEarthquake2 Casualties being moved from village #Mrigu to #Kathmandu by #IAF's MI-17 V5 helicopter. Sitanshu Kar (@SpokespersonMoD) May 12, 2015 Question: what caused there to be casualties? Answer: #nepalearthquake2
answer:
yes

question:
Context: Ivory Coast confirm: Ibrahim Toure, brother of Kolo and Yaya, died Thursday at age 28. Bleacher Report UK (@br_uk) June 20, 2014 Question: who confirmed ibrahim toure's death? Answer: ivory coast
answer:
yes