Complex sentence: A nosy old woman who is the next-door neighbor of the Burtonburgers, she is grumpy, mean, and very selfish to all the children and adults, though she favors Millie over Coop.
Split into simpler sentences: A nosy old woman who is the next-door neighbor of the Burtonburgers. She is grumpy, mean, and very selfish to all the children and adults, though she favors Millie over Coop.