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: The book is very short with just enough information,I wish there was more detail or maybe a study at the end of his book.
Example Output: Good Review

Example Input: This machine is really good, but not without some problems. While the noise it makes does a lot to mask other noises, our cats definitely do enjoy this thing. It also helps keep them calm, which in turn, brings us much peace of mind. However, sometimes you need your hands free for something else -- like getting the cat out from between the mattresses.
Example Output: Good Review

Example Input: This may be the worst excuse of a book I have ever tried. The author has zero understanding about physics and engineering. One example from the second paragraph.&quot;We can only get enough oxygen in our brain to keep us alive if we produce it fast enough&quot;--a man whose father worked with gas masks would not say so!If you read this without being required to, do yourself a favor and turn away from it. You will regret not doing that after this.
Example Output:
Bad review