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.

Example Input: Context: KellyAnne Conway setting all sorts of fashion trends for the # Michael Moran (@TheMichaelMoran) January 20, 2017 Question: who is setting all sorts of trends? Answer: kellyanne conway
Example Output: yes

Example Input: Context: Greg Auman @gregaumanShrine Game gives offensive MVP to RB Eli McGuire, who had game's only TD, and defensive MVP to Trey Hendrickson, who had a sack-fumble.1/21/2017, 11:12:45 PM Question: what did hendrickson have Answer: a sack-fumble
Example Output: yes

Example Input: Context: We regret the mistaken RTs from our account yesterday and look forward to continuing to share the beauty and history of our parks with you NationalParkService (@NatlParkService) January 21, 2017 Question: what was mistaken in the account yesterday? Answer: rt's
Example Output:
yes