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: Yessir "BubbaClaus" da single drops today!! #urwelcome bubba watson (@bubbawatson) December 16, 2014 Question: who's show is referenced in the tweet? Answer: brooke baldwin's
Example Output: no

Example Input: Context: #iwishmyteacherknew sometimes my reading log isn't signed because my mom is not around a lot #edchat Kyle Schwartz (@kylemschwartz) April 6, 2015 Question: who is supposed to sing the reading log? Answer: mom
Example Output:
yes