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.

Ex Input:
I ordered the wrong size by mistake, I was able to exchange for the correct size in 48 hours without a hassle, The product? It's an Adidas, I expected quality, well... I've got it, it's a very confortable shoe.

Ex Output:
positive

Ex Input:
Honestly I havent noticed a difference and that is when I can keep it on my son. Hes 6 months old and smallest size is too big for his arm or ankle :(

Ex Output:
negative

Ex Input:
Got this for my 7 year old son's birthday. Size is perfect. However, after about a month it starting going flat between uses. Now it won't even hold air long enough to play for 30 mins. Seems like its just poor quality.

Ex Output:
negative