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: Seller advertised this computer as coming with Windows 10 Pro, one of the main reasons I purchased. The product instead has only Windows 10 Home. An honest seller would provide a free update.
Example Output: negative

Example Input: 4.5 stars The vented bottles helped so much with my baby’s gas problems. Took half star off cuz they are diff prices depending on color, wished they were same prices
Example Output: positive

Example Input: It fits my phone perfectly and it is waterproof. I have used it for taking pictures during my kids water activities including some under water pictures, they all came out great. Loving it and not worrying of my phone will get water damaged with this case on.
Example Output:
positive