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

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: I don't know what it is about this movie but it's a classic 80's flick! Mark Harmon is at his best. The plot is a little predictable but it's entertaining and takes you back to the decade past.
A:
Positive