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]: This brush is a snow and ice BEAST! It is, perhaps, the most solidly built brush and scraper, with easy extension and easy rotation of the brush to change its angle relative to the shaft. As it is a new purchase for me, I'll have to update this later in the snow season. And, frankly, I'm hoping that I won't need it again this season. But I am prepared! Fast shipping, and excellent follow-up by the sender. highly recommended.
[EX A]: positive

[EX Q]: I’ve been having knee pain for the past few months so I decided to try this support brace. I can’t believe how much support it does provide and my knee pain has gone down significantly. It’s slim so you can wear it under pants while at work but also looks fine with shorts. So glad I found this and it is helping with my knee pain!
[EX A]: positive

[EX Q]: What more is there to say? Have had these in our home for about 5 weeks now. No problems whatsoever. They even recovered after 40 min power interruption with no action on my part. In fact, I'm so pleased with these 4 plugs that I'm on the site to purchase more and got distracted reading others comments. Happily, they remain the bargain they were before.
[EX A]:
positive