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 book was purchased as a supplement to our studies. I felt it wasn't organized very well and the questions were not related very well. It does have some good information, but needs re-organization. We got better responses with another study materials we bought instead. If you know what your studying about before doing this book, it's okay. Just don't rely on the answer sheet in the back. The other sources that we found help quite a bit. Overall it is worth what i paid for it.
Example Output: Good Review

Example Input: This book was the worst one I have ever read. It should be required reading for anybody in politics. Do not support this trash book. He calls people who don't agree with him liars and racists. That's just gross. If we really care about other people, why are there lies that would take away from people's rights. He's the definition of a politician. The only person he has is himself to blame if he's so stupid to believe these stories. He seems like an intelligent, kind man.
Example Output: Bad review

Example Input: I liked the idea of a good looking and functional headset to use when listening to music or making calls. The sound quality is really great, but it doesn't fit comfortably -- the ear "stems" are too large for me (and my smaller size ears don't necessarily make these things fit better). And, this particular model, which should work on all standard bluetooth devices, won't reliably pair with them. After about two days use, some keys stopped working after being reprogrammed multiple times.
Example Output:
Bad review