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 am stunned by the failure to indict Eric Garner's killer.— John Legend (@johnlegend) December 3, 2014 Question: who's going to cut this out? Answer: ya'll
Example Output: no

Example Input: Context: I'm going to fight my heart out to make sure @realDonaldTrump's toxic stew of hatred & insecurity never reaches the White House.— Elizabeth Warren (@elizabethforma) May 4, 2016 Question: why are karen and nick praying for friends and families? Answer: because of the victims of the nepal earthquake
Example Output: no

Example Input: Context: Democratizing information has never been more vital, and @Wikileaks has helped. But their hostility to even modest curation is a mistake.— Edward Snowden (@Snowden) July 28, 2016 Question: what is either going up or down the stairs? Answer: a cat.
Example Output:
no