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.

Ex Input:
Context: If aliens began watching us this year they probably think all our major national events honor Beyonce The Daily Edge (@TheDailyEdge) February 3, 2013 Question: who thinks out major national events honor beyonce? Answer: aliens

Ex Output:
yes

Ex Input:
Context: Very Cool RT "@ABRVTour: The #TripleCrown Trophy is in the building at #Belmont #CaliforniaChrome #TripleChrome Chip McGaughey (@Chip_McGaughey) June 4, 2014 Question: where is the triple crown? Answer: in the building

Ex Output:
yes

Ex Input:
Context: Thank you Maurice White for being the architect that put together such an incredible band! @EarthWindFire Earvin Magic Johnson (@MagicJohnson) February 5, 2016 Question: who established earth wind and fire? Answer: maurice white.

Ex Output:
yes