Definition: 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.
Input: Context: GER Special Representative #Lindner exchanged with #Bono in Berlin about the fight against #Ebola today. @ONECampaign GermanForeignOffice (@GermanyDiplo) November 12, 2014 Question: where are lidner and bono? Answer: berlin

yes