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: Polls show slight break toward Obama over weekend -- a hurricane lift. Clearer favorite but Romney very capable of upset #ac360 @cnnopinion— David Gergen (@David_Gergen) November 6, 2012 Question: when did the break toward obama happen? Answer: over the weekend

yes