Instruct: Classify Amazon reviews into positive or negative sentiment
Query: excellent, but not for younger kids

This book is hilariously funny, but cruel to kids who believe in Santa Claus. I was devastated the first time I read it, when I was about 9 or 10, because of that part. Then I read it again two years later and loved it. Please make sure your child already "doesn't believe" in Santa before letting him/her read it--it's a terrible way to find out "the truth." Other than that, a great book, especially the parts with Uncle Feather and where Fudge asks "Is this a catastrophe?" and the principal replies, "No, Fudge, but I'm sure you'll try harder next time."