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: .@HillaryClinton brags about destroying coal country. Just when I thought she couldn't be anymore unqualified... Dr. Rand Paul (@RandPaul) March 14, 2016 Question: did bragging make her more or less qualified? Answer: more unqualified.
Example Output: yes

Example Input: Context: #EbolaQandA My mom is flying into Love Field on Sat. Should she be concerned about catching Ebola?— Blackhorse (@RoscoeTheHorse) October 1, 2014 Question: what business was miss cleo in? Answer: phone psychic
Example Output: no

Example Input: Context: Today we welcomed a beautiful baby daughter into the world. Both she and her mother are doing great. We can’t stop smiling. Thank you Harry for stepping in to host the show at 2 and a half hours notice! x x x— James Corden (@JKCorden) December 13, 2017 Question: who is the author of this tweet Answer: st .loius county p.d.
Example Output:
no