Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: I have four of the outdoor units that are as good as a paperweight. At over $200 a piece, I've wasted over $800 on these. Don't waste your money. I've never wrote a review on any product before, and I've bought a lot of things off of Amazon, but these are the worse items that I've ever bought. Avoid at all cost.
Output:
Negative