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: Katy Perry's Halftime in a nutshell Travis Lattner (@TLatt7) February 2, 2015 Question: what is this twitter page currently discussing Answer: katy perry's halftime show

Ex Output:
yes


Ex Input:
Context: It's about time Transfer Deadline Day was made a bank holiday.— Gary Lineker (@GaryLineker) February 2, 2015 Question: who should the dude apologize to? Answer: sarah

Ex Output:
no


Ex Input:
Context: When @RealDealBeal23 found out the @WashMystics added @De11eDonne to the #DCFamily: "Oh we winning, oh yea we winning for sure." #A11DC Du — Washington Wizards (@WashWizards) February 2, 2017 Question: what team added elena donne? Answer: washington mystics

Ex Output:

yes