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]: Product damaged enroute! Refund sent? Only problem is now I must wait over a week for the money to be returned to my account so I can reorder it! Great customer service Amazon!!!
[EX A]: negative

[EX Q]: I have a smallish black dog that disappears into shadows and night an this collar is perfect to help keep an eye on him. He is so small I was able to get two equal lengths out of the collar portion and I love that it is rechargeable.
[EX A]: positive

[EX Q]: These are awful quality. I bought 2 pairs and have already washed them and wore 1 of them. The one I wore is already damaged just from wearing it this one time
[EX A]:
negative