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: 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
Example Output: yes

Example Input: Context: This is what dauntless leadership looks like. Thank you, @GovernorVAproud to call you a friend. -H Hillary Clinton (@HillaryClinton) July 23, 2016 Question: who's campaign in a disaster? Answer: jeb bush
Example Output: no

Example Input: Context: Police react in aftermath of explosion #bostonmarathon #boylstonst (John Tlumacki photo) Boston Globe Sports (@BGlobeSports) April 15, 2013 Question: what is the current condition of the royal highness and her child? Answer: they are doing good.
Example Output:
no