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 product is fantastic. Great quality and easy installation with the included video. It was installed within 15 minutes on my 2012 Chevrolet HHR. I have already recommended this to friends who are looking for a replacement mirror, as well as, some extra help installing it. One suggestion before attempting this, watch a few videos online about how it looks in comparison with your existing mirror. The mirrors will be off much more than they had appeared prior to install.
Example Output: Good Review

Example Input: i dont think its working i saw nothing no changes while using this.maybe im expecting too much.ill give some more time then i'll try anything else. oh well live n learn.
Example Output: Bad review

Example Input: For some reason when these books are in hardcover editions with dust jackets, it's a bit annoying because if you try to pick up one, you invariably pull it out of your purse or bag.
Example Output:
Bad review