Question: Do director of film Doctors' Wives (1971 film) and director of film Extra Service share the same nationality?
Sentence (from "Doctors' Wives (1971 film)"): Doctors' Wives is a 1971 American drama film directed by George Schaefer and starring Dyan Cannon, Gene Hackman, Carroll O'Connor, Richard Crenna, Janice Rule, John Colicos, and Rachel Roberts.
Relevant evidence: Yes