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

I bought this for a friend for her birthday and it didn't have a picture posted but from the description I figured it was the old version without the scary lady on the cover but it wasn't. Oh well.
Positive

The bed needs air refilling more often than I thought it would- every 3 days at the most. So much so that if I didn't pump it, the bed would all be like a water bed with "jelly-like" feeling. To lessen this effect I situated it in a corner of the room against the walls. Further more, what surprised me was the round water condensation on the bed sheet just underneath my (head) pillow in the morning. But what confuses me is that in the evening the bed feels cold (or the air inside feels cold).What I like about it though is that the pump works real fast in inflating- although it is loud for an evening activity.
Negative

Besides his Robot stories and novels, Foundation stands as oneof the greatest science fiction novel written by the late IsaacAsimov.By mixing properly the future, humanity and the sociopoliticaldevelopment of our race on a galactic span using the decline ofthe Roman Empire as a base, Asimov tells us a story of one man'sstruggle and the product of its stubborness in following stories.This book is a must for anyone, genre fan or not, I guaranteeyou will read it more than once in your lifetime.

Positive