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: Great to be in Riyadh, Saudi Arabia. Looking forward to the afternoon and evening ahead. #POTUSAbroad Donald J. Trump (@realDonaldTrump) May 20, 2017 Question: where is donald trump Answer: saud arabia

yes