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.

Ex 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.

Ex Output:
Bad review


Ex Input:
The book is very short with just enough information,I wish there was more detail or maybe a study at the end of his book.

Ex Output:
Good Review


Ex Input:
I was so pleased to finally get a battery for my Samsung Galaxy and it worked great just like the factory one did, but after having this replacement one less than 2 months (about 2-3 charge/discharge cycles, which is about what a new OEM battery does on their own), I'm ready to replace it. This battery's "memory" has completely died. It works perfectly now, if you have to reboot your phone, otherwise it'll be dead in no time - even under light use.

Ex Output:

Bad review