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

Example Input: I buy/view/listen to a lot of music video's (read, sorry night life) and this one was a disappointment. Sound varies too widely act to act. Couple of goosebump moments (I love the Mega-Guitars on Kansas City) but mostly a smorgas-bored of available talent putting in their charity work. Zero additives for the video freak and no real explanation of charitable intentions ever given. Borrow this from someone instead.
Example Output: Negative

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: Works as described, no distortion issues. I use this in my workout room so I can watch TV and wear headphones while I run.
Example Output:
Positive