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: Just opened my plastic package because hard to see if center pin was copper as pictured in ad.. sadly it was not. By the way, do not tear open your package because it states on the package,"No returns if bag is open" what a waste, I should have just driven to an autoparts store.
Example Output: negative

Example Input: We give this product high marks for ease of set-up and are satisfied thus far with the speed of the processor, which was an area of slight concern when we purchased. Recommended for word processing, Internet browsing, etc
Example Output: positive

Example Input: Only had them for a couple of weeks but for the price they are awesome. One of them is a little too big but I can remedy it pretty easy. Would give 4.5 but not an option.
Example Output:
positive