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: The sound is good enough and the Bluetooth connected great but after a few months they stopped working. I contacted LG for a replacement which was quick to get here with no hassle. So far so good, however, their claim that their product contains "durable materials" has me doubting my purchase. I've worn them every weekend day while work at an office since December 2013 (maybe 2 hours a day, if that) and today is finally the day when one side died.
Example Output: Bad review

Example Input: This case is made of VERY cheap plastic. It broke while I was trying to get it on my ipod. The plastic breaks easily and can be taken off. DO NOT BUY!!!!!
Example Output: Bad review

Example Input: I couldn't make heads or tails out of this book. When reading it to my children, they were confused. There's not enough information for a child and the pictures are boring. The cover says'read aloud as your child' which is why I bought this, but no way. For that purpose, there needs to be more words on each page. I've decided to return it. Bummer. It was great when we had all things animals. But they're making them in bigger sizes now, so I'll just stick with that.
Example Output:
Bad review