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]: 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.
[EX A]: positive

[EX Q]: I received this chair today and definitely regret buying it. The off gasses made me and my son both sick with difficulty breathing and sore throats. There was no odor however some chemicals do not have a smell. There is formaldehyde per the package insert. Wish I had known this before buying. The reviews seemed to convince me that it was also pretty comfy but sadly I would not want to sit in this chair for More than a few minutes. It’s very firm and not the chair I was hoping for. It’s currently outside off gassing and will most likely keep it because I’m too lazy to pack it back up. It will probably grace the corner in spare room to torment any guests we have in the future.
[EX A]: negative

[EX Q]: Its a piece of junk, picture shown looks cute. And to make matters worse it came with the plastic opened and the spinner is not even there. Don't waste $19.00 on this junk!
[EX A]:
negative