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

[EX Q]: With the type of closures and the amount of compression it is meant to give it's really difficult to put on. You need a hand to pull it closed in order to actually be able to close each of the 20 some odd hooks.
[EX A]: Negative

[EX Q]: I used this program for my science class. My students loved it! They learned some interesting facts, saw damage from earthquakes we talked about in class and never once did I hear that it was boring! Can't beat that!
[EX A]: Positive

[EX Q]: Would not purchase this item again. Used in spare bedroom for guests. Hardly used, until now. Hoping top have Xmas guests use. First to lay on it, and center ring pooped.Still usable, but uncomfortable. The second night used bed hissing sound and a large leak appeared. They provide plastic to repair leaks, but do not provide any adhesive. I have to eat it now because I had until 11/12/12 to return.I can get partial credit, not including shipping if I just had just kept the box and shipping label for 3 months.
[EX A]:
Negative