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.

Ex Input:
Context: HMS Lancaster, known as the 'Queen's Frigate', sent a message of congratulations to @KensingtonRoyal on the new birth Royal Navy (@RoyalNavy) May 2, 2015 Question: what is the hms lancaster known as? Answer: the queen's frigate

Ex Output:
yes


Ex Input:
Context: Our very weak and ineffective leader, Paul Ryan, had a bad conference call where his members went wild at his disloyalty.— Donald J. Trump (@realDonaldTrump) October 11, 2016 Question: who does donald trump think is an ineffective leader? Answer: paul ryan

Ex Output:
yes


Ex Input:
Context: Putin has become a big hero in Russia with an all time high popularity. Obama, on the other hand, has fallen to his lowest ever numbers. SAD— Donald J. Trump (@realDonaldTrump) March 22, 2014 Question: where did putin become a big hero? Answer: russia

Ex Output:

yes