Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
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Question: You make it in rock and you think you can do it all. This book proves you can't. It is a truly poor excuse for a collection of haiku and it is particularly offensive because there are those who will buy it thinking it the real thing. Do yourself a favor and buy Higginson. You can look at this in a few minutes in the bookstore. It might be good for advanced classes in "don't let this happen to you!"

Answer: Negative


Question: This product requires a stereo player in which the balance is turned totally to the left. Most auto systems have that capability. However if you have Dolby or SurroundSound, it can be difficult (and maybe impossible) to play the cassette without hearing two recordings at the same time. Unfortunately neither the packaging nor the website will warn you of the problem. You therefore should think before buying. Once you have opened the packaging you may be unable to return the product.

Answer: Negative


Question: Fast Blow-up, Easy to handle, Comfortable, Not too big & not too small - great for Guests. Only 4 out of 5 because it looses about 15% of the air originally put in within 2 days. I still recommend this product to anybody!

Answer:
Positive