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: Look out. I've used these for several years and the colors are no longer red, dark blue, yellow and dark purple. I received neon green, orange, aqua blue and fuchsia pink. Dark purple was okay for my little guy, but bright pink isn't going to work. Will either have to use one old car from last school year or order another set to have four. I put two under a yumbox and two on top in a lunchbox. Others are right about not staying cold long, but works great to keep non perishable items cold.
Example Output: positive

Example Input: I like how the rake like piece on the dust pan gets off the hair and dust bunnies that stick to the broom. To be honest I didn't know what the extra metal piece was for .... to extend .... until I just started this review! But I like the idea. I like this better than any other broom and dustpan set I've ever had.
Example Output: positive

Example Input: This thing didn't even last on the phone. It wouldn't even install properly. I've put this type of screen protector on about 25-30 phones and thought I would give this one a try. Big mistake. Stay away
Example Output:
negative