Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: Wow, what people will do behind jealousy and revenge - there are some doors you should not open, and if you do - be prepared for what you find behind it!
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Positive