Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Context: Our prayers are with the students, educators & families at Independence High School & all the first responders on the scene. #PatriotPride— Doug Ducey (@dougducey) February 12, 2016 Question: at which school were first responders on the scene for? Answer: independence high school
Solution: yes
Reason: Here, the generated label is 'yes' because the given context is useful in answering the question.

Now, solve this instance: Context: What. A. Match. #Nadal survives an onslaught from world No.112 Tim Smyczek to prevail 6-2 3-6 6-7(2) 6-3 7-5 #ausopen Australian Open (@AustralianOpen) January 21, 2015 Question: who won the match between nadal and smyczek? Answer: nadal
Student:
yes