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 agree , this people are big time scammers look what they advertise and then you can see our chat how he says only works for T mobile when they advertised worked for AT&T , now want me to return the equipment to refund my money. Sure you already fooled me once and now you want the equipment and keep my money too? You been warn be careful buying from them, plenty of other sellers with integrity and wont steal your money
Example Output: negative

Example Input: This toothbrush comes with the features of a much more expensive toothbrush but for 1/3rd the cost. It is lightweight and easy to handle. It does not come with a charger but includes a USB cable that can be plugged into any phone charger. Overall, a great buy.
Example Output:
positive