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.

Example 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.
Example Output: Bad review

Example Input: All but 3 flavors were nasty!! The only good part about these are the fact they do NOT contain any artificial sweetens. But other than that, it's gross.
Example Output: Bad review

Example Input: This phone case would be great because it's cute and my daughter LOVES owls. However, the first time we opened it, the seam on front was already coming undone. It is a cheap product. We bought it as Christmas presents for our daughters, so by February these were worthless. Also, some of the stitching came undone in other spots. If this item ever becomes available, buy another case elsewhere. This isn't worth it. It's cute, but not durable. :-(
Example Output:
Bad review