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 Q]: 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 A]: negative

[EX Q]: We bought this to limp us through not having a stove for a while. It works great! We use it to saute veggies, boil water, scramble eggs.... anything a small bottom pan can do! Heats up super quick and very easy to clean. Even once our stove is repaired, it will be in regular use in our home.
[EX A]: positive

[EX Q]: I wanted something to display y books and pictures but I didn't want the normal floating shelves. These turned out to be just what I wanted and look great.
[EX A]:
positive