Definition: 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.
Input: Context: I'm glad NBC is doing this #TheSoundOfMusicLive rehearsal. Once they get the audio levels sorted out, it'll be GREAT.— Steve Hayman (@shayman) December 6, 2013 Question: who is doing "thesound of music live" rehearsal? Answer: nbc

yes