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: I haven't done any serious studying for my exam. This will be the first time I've ever sat at a exam after watching a TV show and looking all over this book before I go into each section, trying to find anything. I can almost get through it...
Example Output: Bad review

Example Input: Interesting book. A bit too much for me, though. The authors spend an excessive amount of time talking about their philosophical views.
Example Output: Good Review

Example Input: the light works great. It is very easy to install. Be advised that some wires must not have been cut correctly and will require additional length if you want it less tight. Also, there are a number of tiny screws in what you would call the ballast. Mine was missing one hole drilled so I did get around it, but be warned. The screw covers do seem secure.
Example Output:
Good Review