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: Worth saying again: it is DRY dry out here. Lots of fields like this. Plowing the dust. #endangeredriver #cadrought John D. Sutter (@jdsutter) June 19, 2014 Question: what is john's concern about california? Answer: that they're having a major drought.
Example Output: yes

Example Input: Context: #fantasticfour is not the type of movie you see in the theaters. I'd wait to watch it at home. Wish #hollywood would stop rebooting 🙇— William Bussey (@iambussey) April 20, 2015 Question: what is the only word on this tweet? Answer: tweet
Example Output: yes

Example Input: Context: The UK is an extraordinary partner for America and a force for good in an unstable world. I hope it remains strong, robust and united. -bo— The White House (@WhiteHouse) September 17, 2014 Question: who was the person who wrote this tweet? Answer: barack obama
Example Output:
yes