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.

Ex 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.

Ex Output:
Good Review


Ex Input:
When I bought it, was expecting a hard cover book. Turns out to be a &#34;soft cover&#34; book with paper back. Not worth the money. Should not have ordered it. If it says something about hard cover i would assumed that meant hard.

Ex Output:
Bad review


Ex Input:
Just what we wanted! Works just like the original. And at half of the price. We haven't had any problems with it, yet. We've been using for several months.

Ex Output:

Good Review