Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Crosses the border from Science Fiction to Science Fantasy

One of the things I always like about Crichton's books was that there was always a feeling in the back of my mind that the story was somehow possible.From Jurrasic park's "DNA locked in amber" to the "alien life form" brought down by a satelite in the Andromeda Strain - I always believed that someday - this kind of thing might happen,In Prey - however - I just didn't get the same feeling and I think the book goes way beyond what can someday be possible.Crichton puts the story line of Prey in present day terms when in fact - technology such as this won't be available for many, many years - not in our lifetime anyway.If Crichton had put this story a few hundred years in the future - it may have worked