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.

Example Input: This is the second power bank I bought in past two month. The first one turns out the capacity is too big to travel by air. I got this one under 10000mAh. Tested a couple of times. Works great. Built in cables very convenient. Comes with a storage pouch good for travel.
Example Output: positive

Example Input: Worn once by my child & washed once my me. How is it possible that it has a large hole in it already!?!?! The amount of piling after just 1 wear & wash is ridiculous too! The fit is great & they seem warm, but if they are basically disposable socks, what good are they? Wish I could get a refund. Would not recommend.
Example Output: negative

Example Input: Maybe this was a bad batch, but in 50 years of owning dogs I've never seen a hoof break apart like this. My border collie mix broke up the first hoof I gave her from the bag and swallowed all the pieces in less than 15 minutes. Luckily, she vomited them up later that evening and did not suffer any ill effects. We had her checked out by the vet the next morning and kept an eye on her nervously for several days though. I hope the processing has changed since my purchase in Dec 2017. We disposed of the remaining hooves
Example Output:
negative