In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.

Example Input: Context: Tennessee's GOP Governor @BillHaslam has been elected RGA Chairman for 2015! The RGA (@The_RGA) November 20, 2014 Question: what is the author of the tweets emotion? Answer: disappointed
Example Output: no

Example Input: Context: 200 people at #chicago Mayor Rahm Emanuel's office protesting police handling of black men. #ferguson #cnn billkirkos (@KirkosBill) November 25, 2014 Question: how many people protested at rahm emanuel's office? Answer: 200 people
Example Output: yes

Example Input: Context: I'm not gonna say anything else other than I'm lucky to be alive. As are many others... and so many people are gone... this is heartbreaking— ChrisYoungMusic (@ChrisYoungMusic) October 2, 2017 Question: what did chris young say was heartbreaking? Answer: so many people are gone
Example Output:
yes