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: So @Drake proves that kissing @Madonna is about as ghastly as I always imagined it would be: Piers Morgan (@piersmorgan) April 13, 2015 Question: how is it kissing madonna? Answer: ghastly

Ex Output:
yes

Ex Input:
Context: Google puts its best designer in charge of Google Glass, its biggest design problem. Nicholas Thompson (@nxthompson) January 15, 2015 Question: who did google put in charge of google glass? Answer: tony fadell

Ex Output:
yes

Ex Input:
Context: Just another night in the desert @justinbieber #beliebit Caroline Wozniacki (@CaroWozniacki) March 11, 2015 Question: who made the complaint? Answer: cassell

Ex Output:
no