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:
Never received item !!! Add-on item missing from delivered package and not discovered after allotted notification time had expired so no recourse as far as a refund. Shop with Amazon almost exclusively and dissappointed to say the least.

Ex Output:
negative


Ex Input:
grandfather thought he would like the open to but says they tend to roll up on him and become uncomfortable so be sure to try closed toe first. the quality was fine just a personal comfort issue.

Ex Output:
positive


Ex Input:
I learned some nice things in tackling the puzzles (flags of the world) and enjoyed the colorful natural scenes. It's nice to play a challenging puzzle that isn't full of ghouls and their creepy back stories.

Ex Output:

positive