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: This item was much shorter than I expected it to be. I have an alaskan malamute and this did not do the trick in trying to help with his pulling. If you have a small dog, this will work for you.
Example Output: negative

Example Input: The book came even with the stink of the previous owner, dirty, the opposite the spine of the book white pages were so dirty it look like the previous owner never wash their hands. The spine were cut with a knife
Example Output: negative

Example Input: I've been using tamanu oil with my kid who has a severe episode of psoriasis. I had good results so far, i will continue using it, untill all the psoriasis disappear.
Example Output:
positive