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.

Q: 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

A: yes
****
Q: Context: I mean, I dont' write obits but I'm pretty sure you're only meant to publish when the person in question is dead? Ed Yong (@edyong209) October 14, 2016 Question: who was a friend to joan jett? Answer: kim was a friend to joan jett

A: no
****
Q: Context: Why would the USChamber be upset by the fact that I want to negotiate better and stronger trade deals or that I want penalties for cheaters?— Donald J. Trump (@realDonaldTrump) June 29, 2016 Question: who might be upset due to the tweeter's remarks? Answer: the us chamber

A:
yes
****