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 Input:
Context: Just beat a robot at beer pong. #CES2015 #onlyinVegas Ryan Owens (@RPOwens) January 7, 2015 Question: where did ryan owens beat a robot at beer pong? Answer: las vegas

Ex Output:
yes


Ex Input:
Context: He can delete it all he wants. The internet is forever. Long live # Ramie 724 (@rachmw77) May 31, 2017 Question: who did ramie say to long live? Answer: covfefe

Ex Output:
yes


Ex Input:
Context: #RichardIII coffin lowered into grave, earth from key sites in his life and death scattered on top #richardreburied— Bryony Jones (@BryonyCNN) March 26, 2015 Question: what is scattered on top of the grave? Answer: earth.

Ex Output:

yes