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: Now that Ken Frazier of Merck Pharma has resigned from President's Manufacturing Council,he will have more time to LOWER RIPOFF DRUG PRICES!— Donald J. Trump (@realDonaldTrump) August 14, 2017 Question: what's the name of the man that resigned from presidents manufacturing council? Answer: ken frazier

yes