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: 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: I needed a replacement after my cats ripped through the cheap one that came with our kittlery. This is better constructed than similar priced ones, appears to be of good quality, works as described and was reasonably priced.
Example Output: Good Review

Example Input: My 2 kids were both completely dissapointed by these songs, they're just awful.
Example Output:
Bad review