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 purchased this item to use for my sons prom send off, the only balloons that were able to be used were the latex ones, no foil balloons could be used, also the discription shows a 2018, I was sent a 2019, which means the day of prom last minute I had to go and purchase the correct numbers which cost me an extra 40 dollars... I'm so disappointed..

Ex Output:
negative


Ex Input:
Shipped out on time and arrived early! Very neat package and perfect invoice/product. Product package was sealed and when opened, product was fresh. Good Quality product!!

Ex Output:
positive


Ex Input:
I didn't have a bottom rail on my rifle so I needed to go get a bipod mount. After that it was easy. Would be nice if it had the option to get a rail mount piece or a bipod mount piece through the order. But I love them, they are strong and easy to put on and use.

Ex Output:

positive