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.

Example Input: Context: I'm going to fight my heart out to make sure @realDonaldTrump's toxic stew of hatred & insecurity never reaches the White House.— Elizabeth Warren (@elizabethforma) May 4, 2016 Question: why are karen and nick praying for friends and families? Answer: because of the victims of the nepal earthquake
Example Output: no

Example Input: Context: Why should you recycle coffee grounds? Watch, Share, Get in touch! #poweredbycoffee this #WorldEnvironmentDay ! bio-bean® (@Bio_Bean_UK) 5 June 2016 Question: how many times can the grounds be recycled? Answer: best results are no more than 3xs.
Example Output: yes

Example Input: Context: Well done @virginatlantic pilots & team for safe & skillful landing of #VS43. Thoughts with passengers & crew, thanks for support & patience— Richard Branson (@richardbranson) December 29, 2014 Question: who is being congratulated? Answer: virgin atlantic pilots and team.
Example Output:
yes