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: These are postcard stamps that the seller takes forever (pun intended) to mail. It was amazing though ... Once I tried to cancel for taking too long they shipped that day. Soooo incredibly irritated with this purchase.
Example Output: negative

Example 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!!
Example Output: positive

Example Input: I plopped this in my oversized leather tote and it's been a game-changer. I can find my keys and instantly feel like a more organized human. Totally recommend! If this review was helpful please let me know by clicking the "Helpful" button below the review.
Example Output:
positive