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: MOTHER! is exactly the surreal demonic nightmare I never knew was missing from my life. Now it's here, I don't want to give it back. # Ryland Aldrich (@RylandAldrich) September 10, 2017 Question: what is here and not wanted to be given back? Answer: mother!

Ex Output:
yes


Ex Input:
Context: Dearest Containment fans, we made 13 wonderful episodes of a powerful story. We'll make more if someone asks us, but in the meantime, enjoy!— julieplec (@julieplec) May 12, 2016 Question: what percentage of flights is canceled? Answer: 30 percent.

Ex Output:
no


Ex Input:
Context: For #NationalSandwichDay, here's where I find some of my favorite fixes via @Pinterest: Alton Brown (@altonbrown) November 3, 2015 Question: what special day was referred to? Answer: national sandwich day

Ex Output:

yes