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: 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: Did anyone else notice an smell that lingered for weeks? It's nauseating! I don't know how it could have possibly gotten there, if so many others haven't noticed.
Example Output: Bad review

Example Input: No picture and no sound. A piece of garbage. Don't waste your money. This movie should be removed from the market place to protect children in this country. Now I am afraid to buy it on vhs. There are plenty available. Be ware.
Example Output:
Bad review