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: My husband and I purchased this as a Christmas present. It worked for about four days then broke. The screen will not turn on when it's plugged into the computer. We contacted Sony tech support who told us that it would cost $140 to get warranty work, because we had been outside of their 90-day free "1 year manufacturing" policy. I feel like I've gotten exactly what they promised - nothing. A complete waste of money. Do yourself a favor -- don't buy this.
Example Output: Bad review

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: My 6 year old son loved this book, it's very funny. And we all enjoyed reading this together at times. The story didn't have to be read in order. You just skipped around until you got thru it.
Example Output:
Good Review