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

Example Input: Haven't had an opportunity to use them yet, but after examining them they appear to be a quality product , I'm sure they will be just fine and work as expected.
Example Output: Positive

Example Input: THE BEST SAUCE YOU COULD EVER PUT ON YOUR TABLE AND USE ON YOUR COOKING ON JUST ABOUT ANYTHING, BRINGS THE COSTARICAN SPIRIT ON YOUR MEALS!
Example Output: Positive

Example Input: The headphone jack on my Zen Xtra stopped working day 40 (1st day on a 7-day cruise, no less!) While Creative did replace the unit, why haven't they recalled all Zen's?This is my second Nomad -- I had a Nomad 2.0 20GB, but it's screen stopped working. Creative refused to repair unless I paid $105, so (silly me) I bought a new unit instead.Never again, Creative!
Example Output:
Negative