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: You don't have to search hard to figure out why #GoogleGlass is being retooled: Adweek (@Adweek) January 16, 2015 Question: how long was he friends with kesha? Answer: for many years.

Ex Output:
no


Ex Input:
Context: You can see the angry crowd grow around the pro-Officer Darren Wilson supporters in #Ferguson. Eliott C. McLaughlin (@EliottCNN) August 21, 2014 Question: where is this angry crowd? Answer: ferguson

Ex Output:
yes


Ex Input:
Context: I anticipated some 'pedophelia!!!' Cries for this video. All I can say is Maddie and Shia are two of the only actors I felt could play— sia (@Sia) January 8, 2015 Question: who were the only actors would could play? Answer: maddie and shia

Ex Output:

yes