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

Example Input: I love my Zen Xtra 40GB - well at least I loved my Xtra. The player is great, except for one major detail - the shoddy quality of the headphone jack. IT WILL FAIL! If you get lucky it will still be under warranty. If you aren't expect to pay at least $40 for the clowns at Creative to fix it. If you think I am just flaming them, check out their forums.
Example Output: Negative

Example Input: Koontz can write. But he sucks as a story teller. Books are supposed to have a COMPLETE story in them, no? Well this one has no ending. No end at all. These 2 detectives are clued in to the fact that Dr Frankenstein exists, and is creating his "perfect race" to some day kill off all humans. That's it. You meet the original, now educated and "at one with the universe" Frankenstein's monster, you meet the main characters, and they have some conflict. That's the whole "story" in this book, which it really isn't because the basic elements of a story are a beginning, middle, and end.
Example Output: Negative

Example Input: Product is as shown but they didnt have it in stock and it took them almost a month to ship. And then instead of sending next day to compensate they sent it regular mail so it took another week to receive. Not too happy with their customer service.
Example Output:
Negative