Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Progressively inferior

When it comes time to introduce my children to this series, I'm going to encourage them to stop at the Prisoner of Azkaban. The literary merit of Rowling's writing decreases steadily throughout books 4 and 5, and dramatically in The Half Blood Prince. Much of it is boring to the point of being un-readable. The plot is weak, thin and predictable. Harry, Ron and Hermione complete their tragic transformations from noble, insightful, loyal young people to whiney, shallow, irritating brats. It's as if Rowling decided children are no longer worthy of good literature, and pounded out another long-winded stylized piece of garbage that, with the right special effects, will make for another mindless movie.