Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Sci-Fi!

This is my idea of great science fiction- new ideas and thoughts, an epic scale and setting, characters that actually develop and change, and are complex (although the bad guys do have a bit of a Dirk Dastardly tint), and situations that are not always black-and-white. My only complaint is the ending, which is an orgy of good happily triumphing over evil in such an overwhelmingly sappy way it was almost Scooby-Dooian in nature.