Complex sentence: When her stepmother sent her father to bring back her body to be buried, he went, and the dog said that she was coming back beautiful and happy, and despite the bribe of a pancake, went on saying it.
Split into simpler sentences: When her stepmother sends her father to bring back her body to be buried, he goes to fulfill his task. After a while, the family dog says that the stepdaughter is coming back beautiful and happy, and despite the bribe of a pancake, he persists in saying it.