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: Cheers to @Letterman. A king, a king-maker, and probably the man most to blame for inflicting me on America. See you soon.— Ricky Gervais (@rickygervais) April 3, 2014 Question: who sent michelle obama a letter? Answer: beyonce
Example Output: no

Example Input: Context: It's been one year since these four boys decided to be strong and stay for us # One Direction (@1DsUniverse) March 25, 2016 Question: how long has it been without zayn? Answer: one year
Example Output: yes

Example Input: Context: 2morrow #Obama wins by 50% w/ more than 280 electoral votes. Polls not registering record #Latino support 4 Obama @cnnopinion #electionwin— Maria Cardona (@MariaTCardona) November 6, 2012 Question: who does malala stand with? Answer: nigerians
Example Output:
no