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: Melania Trump says she wishes her husband would use nicer language sometimes #TrumpFamily CNN Politics (@CNNPolitics) April 13, 2016 Question: melania trump wishes who would use nicer language? Answer: her husband.
Example Output: yes

Example 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
Example Output: yes

Example Input: Context: We can't sit by while extreme politicians attack women's basic rights. Not only is this unconstitutionalit's wrong. Hillary Clinton (@HillaryClinton) May 19, 2016 Question: how many emails are being refereed to? Answer: 19252
Example Output:
no