In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Example Input: These definitely do not feel safe. I was baking something at 400F and took the tray out and looked at the mitt and it was completely black where I picked it up..... NOT WORTH BUYING.
Example Output: negative

Example Input: Excellent quality mini screwdriver set. Works well if you are setting up a stereo system I need small screwdrivers for installing banana clips or other electronic components
Example Output: positive

Example Input: I was skeptical. Seriously skeptical. But 2-3 times daily application and I definitely saw smoother, more firm skin on my legs and stomach! I will purchase again.
Example Output:
positive