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: A7: I've always found that between blogging and twitter, that you don't need to do traditional PR. #CNNAfrica— Erik Hersman (@whiteafrican) January 14, 2015 Question: who thinks the eu has failed us? Answer: nigel farage

no