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 had been planning a trip to the Galapagos Islands, and this guide was required reading by the tour group guide. The guide is thorough, providing information of interest and useful for all travelers traveling among islands, but the format of this book severely detracts from any pleasure of seeing them. There's an interactive CD-ROM provided which allows you to see photos that were previously in the book, but not the whole trip. Additionally, there are many grammatical or spelling errors.
Example Output: Bad review

Example Input: When I first got this item the price was a lot cheaper than at my local store, and also when I bought it there had not been any reviews so we were very excited to use it. However, upon trying to set up the product for either of us, using both remotes, is next to impossible.
Example Output: Bad review

Example Input: Like some of the other reviewers, I'm having trouble playing this game. The game will crash every four - five minutes. Since many others have mentioned this, I would advise you to check your video card drivers and monitor settings. After a reboot (hard reboot), it sometimes works. Sometimes if I change several settings, it's better. Bottom line, don't buy it.
Example Output:
Bad review