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 was skeptical that this would work to keep my hound dog quiet - but it works like a charm! Maybe because her nose is more sensitive?? We don't always put her bark collar on, but when we let her out at night when her barking would be more disturbing to neighbors, it works as described. Sometimes we only put the collar on and not activate it - that also works now that she associated the spray with the collar.
[A]: positive

[Q]: Very frustrated. Opened upon receiving so that it can expand. It's been 6 hours and still hard as a rock and curled up. Wondering how long it's going to take to expand to isn't normal shape.
[A]: negative

[Q]: My 4 month old bearded dragon did not like any of the different packages of food. The thing that holds the cups is decent. The cups are tiny and not really reusable. I wish the holder just came with a cup so I can use my own food
[A]:
negative