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.

Ex 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.

Ex Output:
Good Review


Ex Input:
I bought this product on December 5, 2012. However, the battery died already in March 2013. In May 2013 it was hard to charge - sometimes you had to press and hold but by July after 10 uses (I was listening for about 2 hours per day average) It started acting up. The bluetooth stopped working so music sounded like the speaker is blown. So no matter how much I try to fix it, it's useless. Don't buy this!

Ex Output:
Bad review


Ex Input:
Just an okay product. I thought by ordering "used" the product might be in better condition. This cover is very thin and not well made. Stitching was loose. The price was low so maybe that's whats left but a little high for what I'm told. Will definitely make sure this company puts some effort into their products. Very disappointed with it..

Ex Output:

Bad review