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

Example Input: This is one of those films where more emphasis was placed on the aerial dogfight sequences -- little or no thought went into the plot or acting.What a lame excuse for a movie. My biggest complaint of this movie is that it's so cliche you could cut it with a knife. The role of Texan Blaine Rawlings, who flits off at a moments notice to be with his new love, is beyond belief or plausability. The rest of the acting ensemble, other than Capt. Thenault (Jean Reno), were window dressing in this piece of movie dribble. And the dreaded German Ace was hardly more than a voyeur who wanted to savor his victory by the sight of his victim's face before they died.Lame plot, poor acting, dubious historical accuracy, wrapped around some nice dogfight sequences. What a shame, as I had hoped for better than this.Don't buy this turkey. Save your money and get "Dogfight" -- more accurate, exciting, and historically true.
Example Output: Negative

Example Input: I really enjoyed this book!I couldn't put it down after the first page which compares Marshall, "An average North American Male" ... "plump and balding", to his caged pet bird - "Both had lived three fourths of their expected life span and had another fourth of life to go, if they were lucky".This sets the tone for the novel which is a thought provoking story written with wit and intelligence.I should note, however, this is not and it is a book about the character Marshall Hollenzer. It is really a book about people - the choices they make and/or the fate bestowed upon them - and journeys - both physical and spiritual.This novel is thought provoking, entertaining, and enlightening.I recommend buying at least two copies - this is the type of book that you will want to share with people you know.
Example Output: Positive

Example Input: This forum is for your opinion of the book, not for each of you to explain the plot over and over again. That's already done above.
Example Output:
Positive