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: "I'm my opinion the firearm shown in the surveillance stills is a glock pistol" witness testifies @susancandiotti Lawrence Crook (@LawrenceCNN) March 11, 2015 Question: who brought down the house at the super bowl party? Answer: macklemore
Example Output: no

Example Input: Context: Missiles flying. Rubio's happy. McCain ecstatic. Hillary's on board. A complete policy change in 48 hrs.— Laura Ingraham (@IngrahamAngle) April 7, 2017 Question: what were sen scott brown and sheriff hilliard doing? Answer: canoeing
Example Output: no

Example Input: Context: Proud to take a knee, and to stand tall against social injustice." #takeaknee#medaloffreedom#NFL#BillRussell# TheBillRussell (@BillRus73270016) September 25, 2017 Question: why is emma thompson sailing? Answer: to help save the arctic.
Example Output:
no