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

Example Input: I was installing these chips in a G4 Sawtooth macintosh computer and the chips did not work. I had kernel panics that eventually left the operating system unusable. The hard drive had to be reformatted and the OS re-installed. A great headache and PITA. I need to return these memory modules, how would I do that.best regards,vilppu
Example Output: Negative

Example Input: I went to two stores trying to find the exact brand name products that Sandra Lee insist we use. Frustrated, I asked the store mananger who told me that the products I was looking for, Campbell's fat-free mushroom soup and Jello refrigerated vanilla pudding cups are no longer available in my area.Why make such a big fuss about using this or that brand when they aren't even available? I won't waste any more time travelling around town looking for the exact brand names needed to make the recipes in this book.I have better things to do! Maybe this book needs a "use-by " date before even more products become obsolete.
Example Output: Negative

Example Input: There are movies that make you wonder what's going on, but they do so on purpose. In this movie, I was confused from the start and obviously not on purpose. It has no actual plot just an excuse for more graphics. Where as 1st movie had some plot, the last 2 had none. Waste of time.
Example Output:
Negative