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.

Q: Context: 4 -- For the 1st time in @ChampionsLeague history 4 german teams lost on a matchday. Novelty.— OptaFranz (@OptaFranz) November 26, 2014 Question: what did sutter do today? Answer: drug the boat.

A: no
****
Q: Context: Prince didn't even perform tonight and he owned the Grammys. Mashable (@mashable) February 9, 2015 Question: how many refugees were stuck? Answer: 100s

A: no
****
Q: Context: @cnnhealth #EbolaQandA The patients bodily fluids that were flushed down the toilet before he was dx'd: Contaminate water tx facilities?— Andrea (@Scrappygrrl) October 2, 2014 Question: who recently passed away? Answer: capt roger

A:
no
****