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: All but 3 flavors were nasty!! The only good part about these are the fact they do NOT contain any artificial sweetens. But other than that, it's gross.
Example Output: Bad review

Example Input: Excellent for those of you who don't always go with the mainstream and like to take a different approach to their love life. Great read!!
Example Output: Good Review

Example Input: The concept is nice but don't let anyone tell you otherwise.
Example Output:
Good Review