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 guy had his wife write it. He says he's going to teach her how to use a computer. He's not. And he doesn't even mention that.
Example Output: Bad review

Example Input: The book was easy to read, and filled with valuable information that is worth the time spent reading it. I bought it in conjunction with a project, and, as part of it, read this very good guide on how exactly they did things down there at Area 52. Not only does he get his information, but writes it in such an entertaining way, even for non-scientists.
Example Output: Good Review

Example Input: The battery worked for one charge. By the morning it was dead. I did nothing but plug and unplug, so there isnt anything to keep in contact with while charging. There is no way of knowing if this will continue working. I'm a little disappointed because we loved our last headset. We are hoping that this product just has bad luck. Will update. But till then avoid it. It's not worth it... and you pay what you get.. it's an awful experience all around.
Example Output:
Bad review