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: China wouldn't provide a red carpet stairway from Air Force One and then Philippines President calls Obama "the son of a whore." Terrible!— Donald J. Trump (@realDonaldTrump) September 6, 2016 Question: who did the philippines president call "the son of a whore?" Answer: obama

yes