Complex sentence: SpongeBob dreams about managing the Krusty Krab restaurant, which is in trouble because a customer has no cheese on his Krabby Patty, but SpongeBob saves the day.
Split into simpler sentences: SpongeBob dreams about managing the Krusty Krab restaurant. The restaurant is in trouble because a customer has no cheese on his Krabby Patty, but SpongeBob saves the day.