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: I thought I was hallucinating just now when I saw a broomstick coming towards me but it was just Joseph O'Brien. That guy needs a sandwich. Australia (@Australia_Horse) August 20, 2014 Question: what did @austrailia_horse hallucinate? Answer: a broomstick

Ex Output:
yes

Ex Input:
Context: UPDATE: The #Dignity1 and #Argos are on the way to the #SAR zone whilst the #Aquarius heads to restock in #Trapani. MSF Sea (@MSF_Sea) May 27, 2016 Question: what are on their was to the sar zone? Answer: dignity1 and argos

Ex Output:
yes

Ex Input:
Context: Omw back to Ottawa. Had such a good time at the Olympics. But excited to come home again and play some more hockey. Erik Karlsson (@ErikKarlsson65) February 24, 2014 Question: where is eric headed? Answer: ottawa

Ex Output:
yes