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.

[EX Q]: Context: Fine, Regina. But on Thursday we wear Purple. #SpiritDay (join me to support LGBT youth tomorrow). Reggie Aqui (@reggieaqui) October 16, 2014 Question: what will they do to support lgbt youth? Answer: wear purple on thursday
[EX A]: yes

[EX Q]: Context: @ErrolCNN @Mucheru @GoogleAfrica was a great match @ErrolCNN glad to have won. Think it was home advantage. Re-match in Atlanta 2015 :-) ... Joe Mucheru (@mucheru) May 18, 2012 Question: what is mark geragos hoping this person he doesn't know will accept? Answer: the defamation lawsuit he files
[EX A]: no

[EX Q]: Context: Prince didn't even perform tonight and he owned the Grammys. Mashable (@mashable) February 9, 2015 Question: how many refugees were stuck? Answer: 100s
[EX A]:
no