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: Love these snacks.
Example Output: Good Review

Example Input: This is the worst money i've ever spend on my kindle fire it's so slow u can't do anything at all I couldn't even download this game if I wanted to pay for it.
Example Output: Bad review

Example Input: I purchased this book because of my experience as a college student during the 70's and 80's. This is a good example of an underutilized tool in education today. There was just enough detail to whet your appetite, but not too much that you need more. If there were more examples it would have been more helpful. I bought the Kindle version which should give me increased value.
Example Output:
Bad review