Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example Input: I ordered 3 of these. They are sturdy, comfortable, and stay inflated. The electric motor in each easily and quickly inflates and (almost) deflates them. The height also makes them feel more like a real bed.However, if you want to completely deflate them for storage, that can be a real trick. I could never deflate any of them completely, so in frustration I cut one open to see what the problem is. A design flaw allows an internal plastic flap to cover the deflation port when they are almost empty. The more you try to vacuum or squeeze out air, the tighter the flap seals the port, sealing in the last bit of air.Now I know, and there's nothing I can do about it, but I feel better after attacking one with scissors...
Example Output: Negative

Example Input: This was purchased as a Holiday gift for our 2 1/2 year old. She is very artistic in nature, as are my other two older children (ages 9 & 11) and they all play together when this gets whipped out. It's great for when I need a little time to do some sewing to keep the kids busy for awhile.Sometimes mom gets in on the creative action as well, and then we end up playing for long times, strengthening our bonds.Much better than sitting in front of the TV or computer.The only subject I would mention that could use a little improvement is maybe an idea sheet, like a how to, to give the kids a jumping point on creativity with what is included in this package.
Example Output: Positive

Example Input: these were advertised to fit the habra stone. they did not. i don't know if they changed the advertisement since then but it was aid to be a package with the habra stone so i got it. not even one piece fit. threw them away
Example Output:
Negative