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: my heart is broken. i love you profoundly my dear friend. and i will miss you everyday. may flights... Zachary Quinto (@ZacharyQuinto) February 27, 2015 Question: who caused all of this? Answer: blatter wasn't sole responsible, more have to follow.
[EX A]: no

[EX Q]: Context: Flags at half mast for Whitney Houston? 4 Marines and 1 Navy serviceman assassinated by a terrorist on our soil.....nothing?— Curt Schilling (@gehrig38) July 20, 2015 Question: who is going to perform more tests? Answer: the state lab team
[EX A]: no

[EX Q]: Context: Vessels are en route to assist a ship beset by ice 100nm east of French base Dumont D'Urville. AMSA News (@AMSA_News) December 25, 2013 Question: who's going to help a ship? Answer: vessels.
[EX A]:
yes