Definition: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: Purchased this radiator 5 months ago. It fit perfectly and performed well for 5 months. The side tank seam started weeping last week. This week it is leaking a lot. I expected this to last much longer. I will purchase another brand next time or go to a junk yard and get one from there.
Output:
Negative