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: Update: Recife drowning! #cnnworldcup #newday Frederik Pleitgen (@fpleitgenCNN) June 26, 2014 Question: who was spending time with sheriff hilliard? Answer: senator scott brown
Example Output: no

Example Input: Context: Wish the #NotoriousRBG a Happy Birthday! Sign our card now: Kat Robertson (@mountainkat47) March 15, 2015 Question: what can you do when you click the link? Answer: sign our card
Example Output: yes

Example Input: Context: @cgihou @sewahouston @BAPS aiding students stranded near Braes Bayou during Houston Floods. #StaySafe #UniversityOfHouston Arun Dev Kumar (@AdkArundevkumar) August 28, 2017 Question: what university are the students from? Answer: university of houston
Example Output:
yes