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: And so its goes, thank goodness with the best in Washington, Dr. Neil Starr! Alan P. Gross (@AlanPGross) February 16, 2015 Question: where is alan p. gross? Answer: washington

Ex Output:
yes


Ex Input:
Context: The hole in Hermitage HS's Hall of Fame where Darren #Sharper used to be. @ 11 why he's gone @CBS6@ Melissa J. Hipolit (@MelissaCBS6) March 24, 2015 Question: when did playboy feature jenny jackson? Answer: march 1965

Ex Output:
no


Ex Input:
Context: We want U to #SaveLunchBreak! How? Tomorrow, buy ANY sub & 30oz drink, and GIVE ANY sub FREE! #NationalSandwichDay SUBWAY® (@SUBWAY) November 2, 2015 Question: how do i give a free sub? Answer: buy any sub & 30oz drink

Ex Output:

yes