Definition: 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.
Input: Context: The UK is the biggest per-capita contributor to temperature change & among the least vulnerable to its affects. #BlackLivesMatterUK (@ukblm) September 6, 2016 Question: are they literally laying on the airstrip? Answer: protesters boycotting to stop the plane.

yes