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

[Q]: If you are not in really good shape this is a great product to get ready for P90X. It does get kind of boring because you are doing the same workouts every other day, but they do work. It is only about 30 mins but it is amazing how well it works.
[A]: Positive

[Q]: This toy has peaces that fall off even while puting it together it kept falling apart the legs would not stay on and part of the tower would not stay together. I would not recomend this toy to anyone else or pay for it again myself.
[A]: Negative

[Q]: I had lost the original book that I had purchased so I chose this oneTo replace the first book of this Earth's Children Series. I love this book very much and reread it immediately. This soft cover volume is easier for my elderly fingers to handle while reading. This is a series that will never grow old and one that I will pass on to my grandchildren in the future.
[A]:
Positive