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: Police form circular wall. Reports of flag burning planned outside convention. Firefighters on scene # Tolly Taylor (@TollyTaylor) July 20, 2016 Question: what is planned outside the convention? Answer: flag burning

Output: yes


Input: Consider Input: Context: We can't destroy the competitiveness of our factories in order to prepare for nonexistent global warming. China is thrilled with us!— Donald J. Trump (@realDonaldTrump) November 5, 2012 Question: who is thrilled with us? Answer: china

Output: yes


Input: Consider Input: Context: Save the Children is heartbroken and outraged by the attack on our partners' maternity hospital in #Idlib #Syria— SavetheChildren News (@SaveUKNews) July 29, 2016 Question: where did leo and kate fall in love? Answer: at the top of a staircase


Output: no