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 was really not worth my time and money. It made for a good coaster though! I wouldn't waste your time. Just wasn't what I'd expect from such an acclaimed author.
Example Output: Bad review

Example Input: Love love love!
Example Output: Good Review

Example Input: this book was very good and kept me reading to find out what happens next, i hope the next one is as good. thanks for this great book. will recommend it.
Example Output:
Good Review