Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Got my money back

Hundreds of writers have waded into the Arthurian waters and some have come away with great books. This isn't one of those times. The Guinivere in Dragon Queen is so perfect she's just a card board figure. The ruin of Merlin's character isn't even worth talking about. I bought it at 8:15 AM read it, didn't like and by 4 PM I got my money back.