Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
One example is below.
Q: I've read this book with much expectation, it was very boring all through out the book
A: Negative
Rationale: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: The science of interpretting the hidden meaning of one's dreams is the key to unlocking the door to our unconscious psychic life. Sigmund Freud was the one who discovered that through our dreams we can explore our unconscious, which means that if we can unravel what our dreams mean, we can find out what our mind secretly wants and desires. These wants and desires are otherwise hidden and suppressed by our conscious mind because of our moral and social inhibitions and tensions. In fact, Sigmund Freud theories invented a whole new branch of treatment for neurosis. Freud's "Interprettation of Dreams" has its flaws, and his theories have been constantly modified and improved upon in accordance with new discoveries in contemporary psychology, but it was Freud who first put the wheels in spin.David Rehakauthor of "Love and Madness"
A:
Positive