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: Learn how you can help the Cornwall campaign & to sound proof yr practice space: @BLOENVY Foo Fighters (@foofighters) March 23, 2016 Question: what campaign is seeking help? Answer: cornwall campaign

yes