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 went back to the allergy medicine I was taking before. This did not help at all. I took it for a week, then gave it to my husband. He was unimpressed, said the generics we usually take work best for him, too. Very disappointing.
[EX A]: negative

[EX Q]: Purchased as a Christmas Gift and was so happy that it was well received by my spouse. he loves it and it gives him a very close shave for an electric razor. Looking forward to his nice smooth skin. Thanks
[EX A]: positive

[EX Q]: I like these stair for my chi, he is only 5 pounds and this stair is easy for him to climb. plus they can easily be carried to my motorhome so he can get on the bed.
[EX A]:
positive