Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Witness

The continuing adventures with Matt Payne, Peter Wohl and associates. I thought that this installment moved quickly, a fast read with enough suspense and excitement to keep me going. I enjoy the character development, this author's strength.The murder of a police officer in the previous book remains annoyingly unsolved. I am disappointed by Griffin's frequent use of racial epithets in this episode. Granted, he attempts to be an equal opportunity offender by labeling the mayor the Dago and Peckach the Polack, but those usages did not come near the number of "schwartzer" (and worse)references. However offensive, it is not enough to keep me from moving on to book five.