sentences:  Also, in "Sweet Seymour Skinner's Baadasssss Song", Superintendent Chalmers fires Ned Flanders, who has become Principal after Skinner being sacked, only because he freely expresses his religious views in the school.Edna Krabappel was Bart Simpson's 4th grade teacher, and from Season 23 onwards also neighbor due to marrying to Ned Flanders until Season 25 established Krabappel's death.In "Left Behind", the Leftorium closes, leaving Flanders unemployed, and he returns to Springfield Elementary School, where he finds a new job as Bart Simpson's new teacher, substituting the void left by his deceased second wife Edna Krabappel.