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.

Input: Consider Input: Context: “Without courage, we cannot practice any other virtue with consistency.” -The courageous & inimitable Dr Maya Angelou John Conyers (@repjohnconyers) May 28, 2014 Question: what can we not practice without courage? Answer: any other virtue with consistency.

Output: yes


Input: Consider Input: Context: Jessica Cheung, 36, has been at Mong Kok since last night. She said the anti-occupy crowd began approaching at noon Wilfred Chan (@wilfredchan) October 3, 2014 Question: what crowd began apporaching at noon Answer: the anti occupy crowd

Output: yes


Input: Consider Input: Context: Perhaps my final message from E. Aleppo. Regime forces are closing in and bunker busters are raining down. Bilal Abdul Kareem (@BilalKareem) December 12, 2016 Question: who are closing in on him? Answer: regime forces


Output: yes