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: Pres Obama recited poem on Bradlee by Sen Moynihan: “O rare Ben Bradlee/His reign has ceased/But his nation stands/Its strength increased.”— Mark Knoller (@markknoller) October 22, 2014 Question: who is a total loser? Answer: karl rove
Example Output: no

Example Input: 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
Example Output: yes

Example Input: Context: Just another night in the desert @justinbieber #beliebit Caroline Wozniacki (@CaroWozniacki) March 11, 2015 Question: who made the complaint? Answer: cassell
Example Output:
no