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.

[Q]: This book is short with only 26 pages. If your looking for a very basic overview then this would be fine but i think people wanting to understand economics will most likely get just as much from reading my blog.
[A]: Bad review


[Q]: I was disappointed when this arrived. The sound system is tiny. Not very loud. There are 4 knobs on the front that go from 0 to 9 - and there is no number 10. Don't waste your money - wish I'd spent less for it! My son's room is really small so there's not a lot of noise in there, but he isn't sleeping through it if we turn these on. If you sit close by, it's even louder.
[A]: Bad review


[Q]: Bought this to replace old wireless headphones. I was looking for something cordless and had good reviews. At first it worked as expected but after a week of use the left ear bud stopped working. Don't waste your money. I'm sure these have great sound quality if you are comfortable with buying poor quality. Will not purchase from this manufacturer or vendor again based on my experience. Do yourself a favor stay away.
[A]:
Bad review