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.

Ex Input:
I've been drinking these for years. When they changed the formula, it ADDED SUGAR, tastes WORSE, AND often LEAKS. Totally unacceptable, especially for how expensive these are. I've called Gevalia numerous times to try and explain why then need to go back. Seems EVERYONE liked the old formula better. And it was healthier for you. FAIL!

Ex Output:
negative

Ex Input:
Keep your money! I bought this so I could check my husbands BP. I took it out of the package, set it up, and took his BP. The sphygmomanometer broke in the first use. I didn't even get to finish taking his BP. It felt really cheap too. I also didn't like that I couldn't hook the sphygmomanometer to the cuff. It is part of the pump.

Ex Output:
negative

Ex Input:
Small and light, but very very accurate. Just turn it on and press the button and you get the exact distance from the laser measuring tool to the other side. A great product that I would not be without. And the price was fantastic.

Ex Output:
positive