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: 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: Someone said we don't win anymore. Must not be watching Americans swimming in Rio tonight! #Rio2016— John Kasich (@JohnKasich) August 13, 2016 Question: where is america swimming? Answer: rio

Ex Output:
yes


Ex Input:
Context: Fine, Regina. But on Thursday we wear Purple. #SpiritDay (join me to support LGBT youth tomorrow). Reggie Aqui (@reggieaqui) October 16, 2014 Question: who is being supported by wearing purple on #spiritday? Answer: lgbt youth

Ex Output:

yes