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: This is what #airpollution looks like. #DelhiSmog today. Smell of burning in the air. Getting that choking feeling. #delhipollution Manimugdha Sharma (@quizzicalguy) November 5, 2016 Question: what city is the poster referring to? Answer: delhi

A: yes
****
Q: Context: #SackClarkson #SackJeremyClarkson #BBC If you hit someone at work you should be fired - period @JeremyClarkson @BBC— Pete Lewis (@iampetelewis) March 11, 2015 Question: who came together in africa? Answer: women in tech

A: no
****
Q: Context: "Well I hope this is going to be a two sided story." Dog's name is Elka. He's out looking for bugs #endangeredriver John D. Sutter (@jdsutter) June 22, 2014 Question: which twitter handle posted this tweet? Answer: @rapsheet

A:
no
****