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: If you've purchased many types of mosquito repellent over the years, you'll have heard all about this product.
Example Output: Good Review

Example Input: First of all, this novella was so short, it's barely worth calling part one. It ends mid-scene, and doesn't even take up an entire chapter. Secondly, one reviewer has said that he wished they would have just described what happened after their relationship went to hell. That isn't true.
Example Output: Bad review

Example Input: This is the one DVD I've purchased I feel completely ripped off. To say that you get four workouts in a bundle with three of them being short is very deceptive. A great many workout DVDs on other sites sell these three for about $5.00. The third and fourth are identical if not duplicates as they show only one exercise every couple minutes. Very unethical.
Example Output:
Bad review