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.

Ex Input:
Context: Chip: "We didn't coach well. we didn't do anything well." — Reuben Frank (@RoobCSN) November 26, 2015 Question: who said they didn't coach well? Answer: chip

Ex Output:
yes


Ex Input:
Context: Working all the angles. Took this #selfie while investigating an area with hydrated minerals c Curiosity Rover (@MarsCuriosity) August 19, 2015 Question: what was it working? Answer: because hes gross

Ex Output:
no


Ex Input:
Context: Wager for @alexcast: if Obama wins you shave your 'stache. If Romney wins I'll grow on. Deal?— Paul Begala (@PaulBegala) November 5, 2012 Question: what happens if romney wins? Answer: paul begala grows mustache

Ex Output:

yes