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

[EX Q]: I have only wore these boots a couple of times, so I may be reviewing them too soon. As other reviewers have stated they don't seem to need a break in period, but there is a certain "learning" period. I say this as a person who literally has worn nothing but tennis shoes for years. The learning is getting used to the extra weight and bulk on your feet. I bought these to be a part of my "bug out" plan. I will soon be going on a real hike on rougher terrain to see how they feel then. Plus until I have put many more mile on them to see how they hold up I can't say for sure how many stars they deserve. I give them 4 for now and assuming 200-300 miles from now they are still in good shape I would change it to 5.
[EX A]: Positive

[EX Q]: Ordered two and tested them out: one had a bad pump but the return was easy.These airbeds are super cheap and great. Everyone who has slept on them says they are extremely comfortable. They hold the air well. I recommend them very highly
[EX A]: Positive

[EX Q]: I bought this show in the blu-ray edition expecting an incredible picture, but there was nothing special about it at all. The extras are nice but not what I buy DVDs for. There's no reason to waste your money buying the blu-ray edition. They didn't have HD technology when this special was produced and they can't change that. Buy the regular DVD and save your money.
[EX A]:
Positive