Instruct: Classify a given review as either positive or negative.
Query: I was disappointed in this sequel.

Even though I enjoyed this book, I found that it lacked continuity with Robert O'Brien's original book, "Mrs. Frisby and the Rats of NIMH." The book was an easier read, but it doesn't have the detail that the first book had. I read both aloud to my students. My students all said they liked the original book better.