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 Input:
I'm not sure where to go wrong with this review. The first time I put it on my Nexus 7. It is too small, but the second time, it stretched out enough that you could tell its there. When you stretch the thing, it loses contact and stops working. Not worth trying again. Went back to Zagg, who also made an excellent product. This one just does a bad job. Save your money!

Ex Output:
Bad review


Ex Input:
This book was a complete waste of time and money. It does not teach anything. Just lists the different ways to cook each dish. If you want a great cookbook, get Rachael Ray's- she is hilarious. My only advice would be if you are going off the grid this will give you some inspiration, but for everyday cooking it's useless. A lot of recipes have more than 1 ingredient listed. Which I found odd. I've never used most of those ingredients in one recipe. Do not buy.

Ex Output:
Bad review


Ex Input:
Excellent read, informative for all ages. This reads like fiction but is not. Anyone wanting more knowledge on the subject should read this book.

Ex Output:

Good Review