Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.

[EX Q]: This "biography' should only be offered via e-book (or another digital source).
[EX A]: Bad review

[EX Q]: This is my first book review and I am quite surprised at how disappointed others were with this book. I've read many books on this subject in the past 20 years, including works by Michael Collins, Peter Kuznick (Who's Afraid of Red Riding Hood?) and even Andrew Wakefield. A lot has changed with respect to vaccines and our vaccination status today.
[EX A]: Bad review

[EX Q]: I recently received a Roku 2XS so I could cut my cable service. The device is very easy to set up but the setup disc did not work. It would ask for authorization several times before it allowed me to. After 2 hours, and lots of frustration, resetting all settings as if on the tv screen, etc. finally finished with just using the TV remote.
[EX A]:
Good Review