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.

[Q]: Context: Ghana journos are safe. Police barricade separates us from the fans. We're ok. For now. #afcon2015 Gary Al-Smith (@garyalsmith) February 5, 2015 Question: who's thoughts do they want? Answer: speaker cruz
[A]: no


[Q]: Context: Warmer gear, check! This thing hooks right onto the boat. Called a skirt #endangeredriver John D. Sutter (@jdsutter) July 4, 2014 Question: what is the thing that hooks on the boat called? Answer: a skirt
[A]: yes


[Q]: Context: Amazed to see how much can be done in a gym, so much is missing, let's built machines who encourage more motion ;-) Sébastien Foucan (@SebastienFoucan) February 14, 2014 Question: who carries wounded children? Answer: journalists
[A]:
no