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: There are plenty of tension rods out there. The _only_ advantage of the Umbra rods is that they look better. (Why other manufacturers haven't figured out the design part is anybody's guess.) The problem with the Umbra rods -- all of them -- is NO tension. I have tried these repeatedly.... Why? Because my local hardware store carries them, and they are readily available elsewhere, and I have opted for form over function. Every single Umbra rod I have used fails drastically. They simply cannot bear any weight. Or, to put it differently, they cannot exert enough force against the surfaces they extend out to for them to bear any load. Worse, the springs that are the key element in sustaining the tension tend to fail. When those springs fail, anything you have suspended by the rod will come down. If it's a lightweight drapery panel, you may be in luck. Otherwise, forget about it. 
 Polarity: Negative

SOLUTION: True

PROBLEM: Review: I live in Phoenix, AZ and we have quite a few radio stations that are listed with E-marker. The main problem is that you have to wait 24 hours before the radio and song information is updated on E-marker's web page. Also, if you listen to more than one station it becomes a problem to remember what station you were listening to at the time you heard the song and pressed the E-marker. Trust me, it is hard to remember which one of your 3 listed radio stations you were listening to, especially if it was more than 24 hours ago - I thought the whole point behind this product was to let you not remember! 
 Polarity: Positive

SOLUTION: False

PROBLEM: Review: I am an English teacher and getting through the book was tough. Only Nathaniel Hawthorne can make sex sound boring. 
 Polarity: Negative

SOLUTION:
True