Complex sentence: Aunt Em (real name Emily) is a fictional character created by American author L. Frank Baum who apperars in many of the classic children's series of Oz books, first introduced in "The Wonderful Wizard of Oz" (1900).
Split into simpler sentences: Aunt Em (real name Emily) is a fictional character created by American author L. Frank Baum. Em apperars in many of the classic children's series of Oz books, first introduced in "The Wonderful Wizard of Oz" (1900).