TASK DEFINITION: Given a review text from amazon and its polarity (either positive or negative). Generate answer "True" if given sentence and its polarity match, otherwise generate answer "False". A review is considered positive if the reviewer is satisfied with the product. Otherwise, it is considered negative.
PROBLEM: Review: Ok, we have seen the movie, some of us have read Keel's book (this being a reprint). What no one seems to mention is the fine print located on the copyright page, which reads: "This is a work of fiction. All the characters and events portrayed in this book are either products of the author's imagination or are used fictitiously." If you don't believe me, glance at the copyright page. Obviously, this paperback edition was prepared as a movie tie-in. Touted as a "true event" the publisher then informs us it is all a work of the "author's imagination." And therein must lie a lot of truth. Yes, the book is mildly entertaining, if a bit choppy in parts. My advice is, read THE MOTHMAN PROPHECIES with a large dose of salt (and the movie is much better). 
 Polarity: Negative

SOLUTION: True

PROBLEM: Review: An AC/DC power converter is a very basic item, so I had little doubt that this sub for the expensive Apple original would be effective, though not stylish. Unfortunately, we have had problems. The Powerbook started delivering electrical shocks and inconsistent charging with this adapter, and they got worse when we moved to a country on 240V. I know that the shock problem comes from the Macally adapter because I have another PB and an original Apple power supply, so can do all combinatorial tests. I like Macally and have several of their other products. I probably just got a bum unit but unfortunately cannot deliver a positive review based on previous experience with the company. 
 Polarity: Positive

SOLUTION: False

PROBLEM: Review: Props to Will Connelly. I found it real researchable, very good to find, and overall the book I must find. I love it. It gives tips on rehearsing, what studio to built or to use, what type'a of equipment you must use or have, I mean it gives everything out from chapter to chapter.It also includes bibliography and recommendations you must read and know about. Good information. 
 Polarity: Negative

SOLUTION:
False