Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good plot, but no substance

I liked the first book in this series. I found the idea of a female knight very entertaining. But by the fourth book I was downright disgusted! Not only did Alanna get over her fear of love, but she slept with three guys! There is a word for that today and the only thing preventing me from saying it is because Amazon probably considers it profanity. Great idea, but it sizzled out after the first book.