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.

[EX Q]: Context: Breaking: @CharlestonPD confirm shooting unclear officially how many hurt. Saw 1 transported @ABCNews4#chsnews# Jason Tighe (@jtighe08) June 18, 2015 Question: what did chris rock ask his followers for? Answer: luck
[EX A]: no

[EX Q]: Context: Not rdy for the attention, but happy to show it takes all types to make @marscuriosity ! If only my coworkers wld stop making fun of me ;)— Bobak F. (@tweetsoutloud) August 6, 2012 Question: what did bobak help make? Answer: @marscuriosity
[EX A]: yes

[EX Q]: Context: A slight case of the sniffles means I'm sitting out of the Opening Ceremony. Will be cheering from the couch. #manflu Kurt Fearnley (@kurtfearnley) July 23, 2014 Question: what will kurt be sitting out of? Answer: opening ceremony
[EX A]:
yes