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

Q: This set of assorted short tracks is hard to avoid if you want to create a track layout of even an intermidiate size. The male-male and female-female pieces will provide a dramatic increase in the number of layouts possible as you can now overcome the problem of curves returning to the starting position.This is a must-have for any Brio enthusiast.

A: Positive
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Q: Even thou I enjoyed the art, the book wasn't in english. I wanted to read and understand about the art, to bad.

A: Negative
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Q: I bought this to slim down my tummy under a bridesmaid dress. First, it smelled horrific and still stunk like rubber after washing. Second, it did almost nothing to slim me down, even though I bought the suggested size. Third, after about a half hour of wearing it, it was absorbing sweat and making me feel clammy and uncomfortable. It was extremely uncomfortable to sit down in, and the boning showed through the relatively thick cotton of the dress. I abandoned it completely and felt much better.

A:
Negative
****