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: Nobody can deny @realDonaldTrump uncovered a 14 year long 9/11 cover-up re: celebrations on Jersey City rooftops. — Daniel Scavino Jr. (@DanScavino) December 2, 2015 Question: who uncovered a 14-year long 9/11 cover-up? Answer: donald trump
Example Output: yes

Example Input: Context: I mean, I dont' write obits but I'm pretty sure you're only meant to publish when the person in question is dead? Ed Yong (@edyong209) October 14, 2016 Question: who was a friend to joan jett? Answer: kim was a friend to joan jett
Example Output: no

Example Input: Context: No, but delusion is certainly in the air. Ted Cruz (@tedcruz) July 31, 2014 Question: who posted this picture and tweet? Answer: ted cruze
Example Output:
yes