Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Very, very useful if you have specific info you want.

I've found two books about the Academy Awards which contain lots of interesting information. The "Academy Awards Handbook" both through its year-by-year arrangement and its extensive index allows me to quickly find the specific information I'm looking for. The other book "The Envelope, Please," has lots of delightful information but the table of contents listing is rather cutesy (What exactly would you expect to find under "Missed Opportunities" or "First and Foremost"?) and there's NO index; it has to be read as a novel and has essentially no usefulness as a reference work!