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: Reasons I love the California Delta: 1. This bartender commutes by boat. It's 10 min faster. Watch for "bassholes" John D. Sutter (@jdsutter) July 2, 2014 Question: why does john sutter love california Answer: driving
Example Output: no

Example Input: Context: Today, nearly 200 countries took an historic step to #ActOnClimate for future generations by phasing down HFCs: The White House (@WhiteHouse) October 15, 2016 Question: nearly 200 countries took steps to do what? Answer: putin
Example Output: no

Example Input: Context: VIDEO: Lady Gaga performing ‘Bad Romance’ acoustic at # Lady Gaga News (@TomyKMonster) September 8, 2017 Question: what instrument is lady gaga playing? Answer: piano
Example Output:
yes