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 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: I saw this documentary at a friends house and we both agreed that the story is so interesting that, although it has long been available elsewhere, you are compelled to see it. However, there were some major problems with its presentation:1. The DVD version doesn't contain any chapter stops.2.
Example Output: Bad review

Example Input: I have many types of knives, but this one is my favorite. The handle fits into your hand nicely, not too large or small. It has a very nice balance and feel. This makes a perfect gift as well. It's just so beautifully made. Would buy more from the company in future.
Example Output:
Good Review