<Li> Polychrome--A colorful and ethereal sky fairy and the youngest daughter of the Rainbow . </Li> <Li> Trot--A girl who comes to Oz by accident and who's a year younger than Dorothy . </Li> <Li> Cap'n Bill--An ex-sailor with a wooden leg who visits Oz and is friends with Trot . </Li> <Li> Kabumpo--The Elegant Elephant of Pumperdink . </Li>

How many witches are there in the wizard of oz