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: The llama chase reminds me of story when I worked in Columbus. Wayward llama was killed by hit and run driver. We called it the llamacide. Steve Brusk (@stevebruskCNN) February 26, 2015 Question: which kind of animal was killed? Answer: a llama

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: With Mohammed bin Zayed, swearing in the new Ministers. We look to the future with a spirit of change and progress HH Sheikh Mohammed (@HHShkMohd) February 14, 2016 Question: what position did the people seem to hold? Answer: they are ministers?

Ex Output:
yes