Instruct: Classify Amazon reviews into positive or negative sentiment
Query: an excellant read

it was sort of slow at first while he built the characters, but by the third or fourth chapter it picked up so fast it was all i could do to put it down. its filled with vivid descriptions of the black hills and surrounding areas. the author does such a fine job of story telling that you really grow to care about the main characters, and you despise the villians even more.