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: Hear Ye! @KekePalmer joins the Cinderella family September 9th in her Broadway debut! Let's give her a royal welcome! Cinderella (@CinderellaBway) August 4, 2014 Question: which countries are mentioned? Answer: bosnia and serbia

no