Definition: 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.
Input: Not a very good book. I will not buy anymore of this series. This was the first of his books that left me saying WHAT? Maybe he has something great in him but you won't know because there is absolutely nothing about this book worth reading. Save your money.
Output:
Bad review