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: I’ve been using this product for a few years , and never had an issue, it works great with their razors. The scent is just right and lubes the beard just right so the blades razors slides without any issues. And the best part about the container it doesn’t leave a rust ring on the showers tile
Example Output: positive

Example Input: I have fed my dogs Instinct Raw Boost for years. I have two big dogs, one with digestive issues, and then added a third big dog to my pack, so that brand of food was too expensive when I have to buy a 21lb bag every week or so. Dog Food Advisor gave this 5 stars, so I tried it. My problem dog didn't have any problems at all transitioning to this food, and my Great Pyrenees with allergies has had no issues. I am extremely pleased with this food. I would highly recommend it.
Example Output: positive

Example Input: Keeps my 30yr old looking great, this is the only thing that worked for him. He lost a lot of weight through the winter, within 2 months he looked amazing. He is a extremely picky eater, and he licks his bucket clean every time.
Example Output:
positive