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

Example Input: I enjoy this book very much. It is a timely classic with which I am happy to now have my own copy.
Example Output: Positive

Example Input: This completely predictable novel seems more like a beginner's attempt of writing a book rather than an American classic. The author treats the readers as if they completely lack a brain by stating the understood and by completely beating concepts to death (note the reference).
Example Output: Negative

Example Input: It is 1888 and vampires are everywhere! From holding elite positions in the government to overwhelming the slums of Whitechapel, vampires have integrated into society. How would the presence of vampires change Victorian, England? This is exactly what Mr. Kim Newman tackles in his thriller novel 'Anno Dracula'. Not only is Newman spot on in his depiction of London in 1888, but he also brings in a wide range of fictional characters from Victorian novels including their authors!Characters Charles Beauregard and Genevieve Dieudonne team up to be an unstoppable duo in search of Jack the Ripper. It is hard to put the book down once you've started reading. So glad Titan Books reprinted this! I hope they continue with the sequel Anno Dracula: The Bloody Red Baron, which takes place in 1918, or I will have to get crafty and find an old copy myself!
Example Output:
Positive