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.

[Q]: I purchased this item to use for my sons prom send off, the only balloons that were able to be used were the latex ones, no foil balloons could be used, also the discription shows a 2018, I was sent a 2019, which means the day of prom last minute I had to go and purchase the correct numbers which cost me an extra 40 dollars... I'm so disappointed..
[A]: negative

[Q]: Now we are living a bark free life! Within two days it had cut out 99% of non-essential barking! At last you can feel peace and quietness in our house! We love our beagles but they were driving us crazy! It really detects barking from far away, now we don't even hear our neighbor dogs. Great quality and cute btw...This has been a life saver! We are able to get proper sleep now!
[A]: positive

[Q]: I bought this for the wireless charging capability. I was disappointed that when using wireless charging, it will charge for a few minutes and then it stops charging. You have to continuously check on it to make sure the charging has not shut off. I bought three of these. One for myself and two for gifts. Then I ordered a forth one for another gift. All four have a the same problem. I would not buy again.
[A]:
negative