Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Fantastic, adult themed, realistic fantasy

Finally, somebody has managed to write an intricately plotted, realistic fantasy that isn't geared for 12 year olds. Martin's characters are wonderfully three dimensional, with actions that are driven by their own individual personalities rather than by a contrived plot. Full of surprises, deceptions, and multiple levels of betrayal, this one and its predecessor are books that will stay in the reader's mind long after the last page is turned. Because of the intricate plotting and mulitple storylines, this book is best read after you have reread A Game of Thrones.For those who don't know, the series is scheduled for a total of 6 books. There is supposed to be a five or so year break in "story" time after the third book, so the entire tale can be viewed as two related trilogies. This structure should help prevent the plot creep that has affected Robert Jordan's Wheel of Time series.