Instruct: Classify a given review as either positive or negative.
Query: Marvin Redpost: Is he a Girl?

I've read the book twice. Great book. Casey tells Marvin that if you kiss your elbow, you will turn into a girl. At first, Marvin doesn't believe her, but when Marvin kisses his elbow, he thinks he really is turning into a girl! Very hilarious! If you like books where the character thinks that they are something else than what they really are, then you'll love this!