Question: What was the nationality of the director of "S.O.B"?

full_context: Document 1: William Friedkin: William Friedkin (born August 29, 1935) is an American film director, producer and screenwriter best known for directing "The French Connection" in 1971 and "The Exorcist" in 1973; for the former, he won the Academy Award for Best Director. Some of his other films include "Sorcerer", "Cruising", "To Live and Die in L.A.", "Jade", "Rules of Engagement", "The Hunted", "Bug", and "Killer Joe".
Document 2: Son of the Pink Panther: Son of the Pink Panther (1993) is a continuation of "The Pink Panther" film series. Directed by Blake Edwards, it stars Roberto Benigni as Inspector Clouseau's illegitimate son. Also in this film are "Panther" regulars Herbert Lom, Burt Kwouk and Graham Stark and a star of the original 1963 film, Claudia Cardinale. It was the final film for both filmmaker Blake Edwards and composer Henry Mancini; Edwards retired from movie making, and Mancini died the following year.
Document 3: Stanley Kubrick: Stanley Kubrick ( ; July 26, 1928 – March 7, 1999) was an American film director, screenwriter, producer, cinematographer, editor, and photographer. He is frequently cited as one of the greatest and most influential directors in cinematic history. His films, which are mostly adaptations of novels or short stories, cover a wide range of genres, and are noted for their realism, dark humor, unique cinematography, extensive set designs, and evocative use of music.
Document 4: Wild Rovers: Wild Rovers is a 1971 American Western film directed by Blake Edwards and starring William Holden and Ryan O'Neal.
Document 5: Blake Edwards: Blake Edwards (born William Blake Crump; July 26, 1922 – December 15, 2010) was an American film director, screenwriter, and producer.
Document 6: S.O.B. (film): S.O.B. is a 1981 American comedy film written and directed by Blake Edwards. It stars Julie Andrews, Richard Mulligan, Robert Preston, Larry Hagman, Robert Vaughn, Robert Webber, Loretta Swit, Shelley Winters, and William Holden (in his final film).
Document 7: Billy Wilder: Samuel "Billy" Wilder ( ; ] ; June 22, 1906March 27, 2002) was an Austrian-American filmmaker, screenwriter, producer, artist, and journalist whose career spanned more than five decades. He is regarded as one of the most brilliant and versatile filmmakers of Hollywood's golden age. With "The Apartment", Wilder became the first person to win Academy Awards as producer, director, and screenwriter for the same film.
Document 8: The End (1978 film): The End is a 1978 American black comedy directed by and starring Burt Reynolds, written by Jerry Belson, and with music composed by Paul Williams. The film also stars Dom DeLuise, Sally Field, Strother Martin, David Steinberg, Joanne Woodward, Norman Fell, Myrna Loy, Kristy McNichol, Pat O'Brien, Robby Benson and Carl Reiner.
Document 9: William Castle: William Castle (April 24, 1914 – May 31, 1977) was an American film director, producer, screenwriter, and actor.
Document 10: The Sunshine Boys (1975 film): The Sunshine Boys is a 1975 American comedy film directed by Herbert Ross and produced by Ray Stark, released by Metro-Goldwyn-Mayer and based on the play of the same name by Neil Simon, about two legendary (and cranky) comics brought together for a reunion and revival of their famous act. The cast included real-life experienced vaudevillian actor George Burns as Lewis, Walter Matthau as Clark, and Richard Benjamin as Ben, with Lee Meredith, F. Murray Abraham, Rosetta LeNoire, Howard Hesseman, and Ron Rifkin in supporting roles. This would be Matthau's last Neil Simon movie until 1982's "I Ought to Be in Pictures" with Ann-Margret and Dinah Manoff.
Document 11: These Old Broads: These Old Broads is a 2001 television film written by Carrie Fisher and starring her mother Debbie Reynolds, as well as Shirley MacLaine, Joan Collins, and Elizabeth Taylor in her final film role. In a 2001 BBC "Omnibus" documentary about Elizabeth Taylor, Shirley MacLaine says that Julie Andrews and Lauren Bacall were originally planned to be in the movie. The role of Miriam Hodges was originally offered to June Allyson.
Document 12: Neighbors (1981 film): Neighbors is a 1981 American comedy film based on the novel of the same name by Thomas Berger. It was released through Columbia Pictures, was directed by John G. Avildsen, and starred John Belushi, Dan Aykroyd, Cathy Moriarty, and Kathryn Walker. The film takes liberties with Berger's story, and features a more upbeat ending. The screenplay of the film is officially credited to Larry Gelbart, although it was extensively rewritten, to Gelbart's public disapproval. Released two and a half months before John Belushi's death, the film marks the actor's last film performance.
Document 13: Ed Wood: Edward Davis Wood Jr. (October 10, 1924 – December 10, 1978) was an American filmmaker, actor, writer, producer, and director.
Document 14: Edward H. Griffith: Edward H. Griffith (August 23, 1888 – March 3, 1975) ("Also Known As: E H Griffith, Lieut. Edward H. Griffith, Edward Griffith, E. H. Griffith") was an American motion picture director, screenwriter, and producer. He directed 61 films from 1917 to 1946.
Document 15: Blake Torney: Blake Torney is an American producer, director, actor and entertainer. His prestigious career includes theatre, film, television, and nightclubs. Blake has worked with film directors Alfred Hitchcock, Franco Zeffirelli, Hal Ashby, John Frankenheimer, Barry Levinson and Paul Verhoven. His dancing and singing skills have enlivened audiences and given him the opportunity to work with Tom Jones, Janis Joplin, Michael Jackson, and Sammy Davis Jr. among others. Blake is a 4th generation San Franciscan. Born in Northern California with his twin brother Kirkham Wright. Along with his older brother, musician Ned Torney, Blake has performed and recorded some of his, and Kirk's, original music. He's also an accomplished guitarist who sings and plays music with his son Orion FreedomSong and Django Gurley, performing at festivals and other venues. Since 1974, Blake has directed and performed children's educational projects with Bethany Argisle's "Moment Museum".
ground_truth: American