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

Example Input: This is nothing new from Gail Howard, or at all. These wheeling systems can be worked out mathematically, without paying for this book. There are also lots of websites that offer number generators and wheeling system explanations for free. If you want it all spelled out for you then buy this book, but if you are willing to do a little mathematical work check out lottery information website like [...].
Example Output: Negative

Example Input: Who would buy it not knowing what is on it, is there any new material, is there a better version of music than previously released, how many, etc., etc. You've got to tell us something - give us a reason to buy it - give us a few short pieces to listen too! King indeed; he's pretty good but the King has been dead awhile (notwithstanding the occasional phantom sighting) and the remaining living creators of original rock and roll - Jerry Lee Lewis and Chuck Berry are very much alive and touring and in Jerry Lee's case still recording great music.I'll take a look at buying this if I can see and hear what it is!Jimp.s. sorry for the 1 star but ...
Example Output: Negative

Example Input: This is indeed a book of 3-line poems passing itself off as haiku. This is not harmful certainly UNLESS an unwary reader picks it up and assumes that it is, basing all future opinions of this delightful poetic form on The Haiku Year."There are those who regard haiku as a kind of 'do your own thing' poem, and never consider its foundations. But the haiku, as soon as it goes beyond the beginner's efforts, becomes a matter incorporating traditions and established values, aesthetic and otherwise, and can not be written well outside them." - Robert Spiess
Example Output:
Negative