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 great for adding a very pleasant color to your home. I love using the product. It does smell like lavendar but so does lavender. So far it's been great. The diffuser lasted two weeks with regular use. I'm happy and you will be too. Thank you.
Example Output: Good Review

Example Input: I bought a pair of these at first and one has stopped working just after the return day. They sound great while they work but if you want headphones that will last you buy something else. Also tried to get in touch with customer service twice for this issue, only got an answering machine most times. Not worth trying since they were never able to send me another headset to make it right. I'm done returning them. Amazon took care of them quickly so I give them five stars.
Example Output: Bad review

Example Input: This book goes against every principle of sound finance and economic theory. The author does not even attempt to provide sound statistical information. Her "corrects" are based on a highly questionable statistical analysis from her own previous work with the IRS. If you want basic financial history, there might be something in this book. Otherwise, pass it up. It's a shame that many people will buy into this. I'm an attorney practicing real estate law, but I would rather use my time studying the principles she outlines.
Example Output:
Bad review