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.

Input: Consider 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.

Output: negative

Input: Consider 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.

Output: positive

Input: Consider Input: I was very happy to receive the goods. It was very good on the grade. It was especially suitable after installation. The picture was clear, the operation was simple and easy to understand. I didn't let me down. The last one was not clear. There is no problem with this. Very good, cost-effective is still very high, recommended to buy, all praise service is very thoughtful.
Output: positive