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

What we have here is an academic paper puffed into a book.If one has the patience to wade through his tedious repetitions, condescensions, ax grinding, and self-congratulations, one is rewarded with the glimmer of a new idea. But that idea, recedes mirage-like, ever into the horizon. I don't know how I ever made it through.It's disappointing that Kingsley fails to locate his work within the context of Ganzfeld parapsychology, or even of Sumer, the source culture of the ancients. I was amused to find that despite what he believes to be his breakthrough insights, he is ignored by other scholars.Nice try, Peter, but you owe us much better. Next time, at the very least, give us a useful table of contents, a readable list of references, and an index.
Output:
Negative