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: 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

Ex Output:
no

Ex Input:
Context: Is 10lbs of snow enough? ShipSnowYo.com! ❄️ (@shipsnowyo) February 25, 2015 Question: who cancelled plans to return to akron? Answer: lebron james

Ex Output:
no

Ex Input:
Context: 1yr ago today my life changed. Thank you to everyone that worked so hard to get me back to where I'm at today. It's your life, live it! Tony Stewart (@TonyStewart) August 5, 2014 Question: what is tony encouraging people to do? Answer: to live their lives

Ex Output:
yes