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: I desperately want a reporter to ask Sean Spicer what he has in his teeth Alexandra Gallant (@Gallantdesigner) March 27, 2017 Question: who was the piece by? Answer: dmitriy samohin
Example Output: no

Example Input: Context: I just talked to my mother in #Tehran. She was crying out of joy. Prayed for all youths, for Iran & all of us. Bless my mother! #IranDeal— CameliaEntekhabifard (@CameliaFard) July 14, 2015 Question: why was mother crying Answer: out of joy
Example Output: yes

Example Input: Context: A studio needs to pick up @azizansari's #GhostPlane IMMEDIATELY. If not we'll just make a kickstarter. It'll be cheap.— Ian Eastwood (@Ian_Eastwood) December 8, 2014 Question: what does azizansari need for #ghostplane? Answer: a studio.
Example Output:
yes