. . "Mona Simpson (''The Simpsons'')" . . . . "Mona Simpson" . . . "Mona" . . . . . . . "Homer's mother" . "his mother" . . . . . "Mona Olsen" . . . . . . . . . . . . . . . . . . . . . . "Mona Simpson (The Simpsons)" . . "Mona Simpson (The Simpsons)" . "\\\"Oh Brother, Where Art Thou?\\\" (1991)" . .