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 was informative and very easy reading as all the other books written by this author. If you are considering starting your own business, go ahead with these books,or any of his others they will give good information. Mark
Example Output: Good Review

Example Input: This book was written in the 70's by a man who knows his stuff, which is a rare find nowadays. The problem with it is that he relies too much on anecdotal stories and anecdotical sources to support his hypothesis. It feels like reading someone's blog, not science. Also, some of the anecdotes don't make any sense unless you can explain away how they happened.
Example Output: Good Review

Example Input: It's OK but not great. The cover and binder is more than adequate for what it is. As you insert a CD or DVD, the top edge of the box slips off the binder, exposing the CDs or DVDs inside. Not worth it. I would NOT buy again. I'll go back to my original boxes: those can take abuse from everyday use and still work. This one can't.
Example Output:
Bad review