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 Input:
I didn’t know what to expect when I saw this. I love travel books so anything about travel experience I will give a go. As soon as I started to cry with laughter reading about the kangaroo incident as a child I was hooked. So funny. This man certainly has had an interesting life.

Ex Output:
positive


Ex Input:
My best friend got this mattress before summer started and I've slept on it many times and I get the best sleep at her house. I asked for the mattress as a birthday present, I opened it on the 9th and as I was unrolling it i was starting to smell something musty but i thought it could be because it just traveled in a box for a few days. It's now the 12th and my ENTIRE BOTTOM FLOOR WREAKS OF SOME NASTY MUSTY SMELL. It smells like the bed is rotting. OH and the mattress I ordered is classified as a 6inch mattress but its measuring between 4 and 4 1/2 inches... 3 days later. Today is the first day I have done anything other than touch with my fingers or sniff. The bed feels very firm and if you sniff it you will want to gag. I've already filed through amazon that I'd like a replacement. I'm just puzzled how the mattresses could be so different. We both slept on her brand new, 6 inch, Zinus mattress less than 24 hours after she opened it but mine is like I picked it up off the side of the road. When I get the new mattress I'll edit my review accordingly.

Ex Output:
negative


Ex Input:
Was a good vacuum for a couple months until it started going into a limp mode. Now every time I use it, it won't vacuum up anything. Wish I could figure out if there is any kind of warranty.

Ex Output:

negative