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.

[Q]: Context: 200 people at #chicago Mayor Rahm Emanuel's office protesting police handling of black men. #ferguson #cnn billkirkos (@KirkosBill) November 25, 2014 Question: how many people protested at rahm emanuel's office? Answer: 200 people
[A]: yes

[Q]: Context: #EbolaQandA My mom is flying into Love Field on Sat. Should she be concerned about catching Ebola? Blackhorse (@RoscoeTheHorse) October 1, 2014 Question: what business was miss cleo in? Answer: phone psychic
[A]: no

[Q]: Context: Kellyanne Conway's inauguration outfit has made my eyes roll back so hard I am now in the past Stephen Leng (@steveleng) January 20, 2017 Question: who's inauguration outfit is referenced? Answer: kellyanne conway
[A]:
yes