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]: 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 A]: negative

[EX Q]: it worked great for a few months and then it suddenly stopped charging. it repeatedly bumps against the dock but never begins charging. the battery is now dead and it doesnt work anymore.
[EX A]: negative

[EX Q]: Perfect shirt! Great quality looks super cute on. I ordered a large, I do wish I got a medium it’s a tad big. For reference I am 5’3 165 and I usually go between and medium and large depending on the shirt.
[EX A]:
positive