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: Joe Biden's son ousted from the Navy for cocaine? If the son is like the father, that's a scary thought: think of Joe Biden. Now add cocaine— Bill Maher (@billmaher) October 18, 2014 Question: what branch of military was joe biden's son in? Answer: navy

Ex Output:
yes


Ex Input:
Context: Crowd joins choir at #MikeBrown's funeral, singing & dancing to hymn, ""Every Praise." Eliott C. McLaughlin (@EliottCNN) August 25, 2014 Question: what knocked a house off its foundation? Answer: a mudslide

Ex Output:
no


Ex Input:
Context: Democrats are laughingly saying that McCain had a "moment of courage." Tell that to the people of Arizona who were deceived. 116% increase!— Donald J. Trump (@realDonaldTrump) September 23, 2017 Question: what can they dress like? Answer: us

Ex Output:

no