instruction:
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.
question:
Review: I'm sure this product is great for G4 Powebooks and G3 iBooks, but nowhere in this product description does it say that this adapter is NOT for use with iBook G4s. I tried this on my iBook G4, and the computer kept switching back and forth between battery power and the power supply from the adapter. I'm returning this to Amazon tomorrow, but am upset that I wasted $20 overnighting this adapter because I absolutely need to use my computer this weekend. I wish they would update the product description to make it explicit that this is for Powerbook G4s and iBook G3s ONLY. 
 Polarity: Negative
answer:
True


question:
Review: Very well made and solid (heavy). Not the sort of rack you would want to pull on and of your vehicle by yourself very often. If you want a rack where you don't worry about your bikes swinging in the breeze this is it. The rack does fold up so it doesn't stick out the back too badly when the bikes aren't on. The receiver pin tightens to take out the slop between the hitch and the rack. 
 Polarity: Negative
answer:
False


question:
Review: I read this book and concluded that I am angry at myself for having read it. Pilots like to read about accidents hoping to study a case and avoid the same mistakes. After wasting your time with worthless and mediocre family stories and the well known government incompetence, you end up with the empty conclusion that a good pilot, in good health, all current and confident ditched in the stormy ocean at night and disappeared. None of the worthless stories or ILS text in this book provides any conclusion or lesson to be learned. A line from Billy Madison comes to mind: "you are now all dumber after hearing this story". In fact the only intelligent thought comes from an opinion of a reader that raises the theory that Ron S. used a GPS approach rather than ILS and that proved fatal. 
 Polarity: Negative
answer:

True