Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

[Q]: Ten gold bananas, two thumbs up and hurrah for Gorilla! What a wonderful book. It was a pleasure to read! If you just want to get comfortable and enjoy a book-this is the one I would suggest.
[A]: Positive


[Q]: After reading all the great reviews on this product on Amazon, I decided to go for this. I don't typically have good results from diet products, but I figured I'd give it a shot. I've been taking these for 3 weeks, as directed, and I might as well have been taking sugar pills for all the more this is doing for me. I felt like my appetite increased, I haven't lost any weight at all - in fact I've been fluctuating up and down 3 pounds for the past couple of weeks. I gave this two stars because I didn't feel the anxiety or sleeplessness that some people complained about, but I'm still disappointed. I was hoping I'd find something that actually worked!
[A]: Negative


[Q]: I had to rate this low because the one I received was broken or had some sort of short in the wire and didn't work. I'm pretty sure a working one would be very useful.
[A]:
Negative