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: Bernie Ecclestone's Christmas card. I'm guessing Martin Whitmarsh won't give this pride of place on his mantelpiece. Grand Prix Diary (@GrandPrixDiary) December 20, 2012 Question: what was the historic victory about? Answer: marriage equality

no