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

Ex Input:
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.

Ex Output:
Negative

Ex Input:
I have a small business and it was important that the envelope feeder work well. From day 1, this has been a nightmare. Components of the printer block the envelopes/labels and they don't feed properly. If you use internet postage, you lose money with the misfed labels/envelopes. I'm very disappointed and am shopping for a new printer now, only a short time after purchasing this one.

Ex Output:
Negative

Ex Input:
This book is totally engulfing from page one .It puts thereader inside the fall of a great empire . It really makesyou feel as if though you were there . And it also gives youso much knowledge , that you could talk about it as if thoughwere there . A definite must read for anyone interested inhistory , and for those who are not also . Because it is agreatly written story about the most important event in thiscentury

Ex Output:
Positive