Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Riveting!

I'm so glad that Amazon has a way for big spenders, like myself, to ensure I spent every dime that I make frivously. This is a page turner (a short one at that!) and now I'm confident that my utilities' billing will be properly outsourced all the way to 2008! Thanks IDC! This is sure to be #1 on AMAZON!