Question: Are William Witney and Frederick Wiseman both documentarians?

full_context: Document 1: Gordon Quinn: Gordon Quinn is Artistic Director and founding member of Kartemquin Films and a 2007 recipient of the MacArthur Award for Creative and Effective Institutions. Gordon Quinn has been making documentaries for over 45 years and has produced or directed over 30 films. His recent directing credits include "Prisoner of Her Past" and "A Good Man". His producing credits include the films "Hoop Dreams"; "In the Family";"Vietnam, Long Time Coming"; "Golub: Late Works Are the Catastrophes"; "5 Girls"; "Refrigerator Mothers"; and "Stevie". Most recently, Gordon executive produced "" and "The New Americans", for which he directed the Palestinian segment. Currently, he is executive producing several new films for Kartemquin.
Document 2: Paratroop Command: Paratroop Command is a 1959 war film directed by William Witney, starring Richard Bakalyan, Ken Lynch and Jack Hogan. Quentin Tarantino, an admirer of Witney's work, considers this film to be among his four best. American International Pictures originally released the film as a double feature with "Submarine Seahawk".
Document 3: William A. Wellman: William Augustus Wellman (February 29, 1896 – December 9, 1975) was an American film director notable for his work in crime, adventure and action genre films, often focusing on aviation themes, a particular passion. He also directed several well-regarded satirical comedies. Beginning his film career as an actor, he went on to direct over 80 films, at times co-credited as producer and consultant. In 1927, Wellman directed "Wings", which became the first film to win an Academy Award for Best Picture at the 1st Academy Awards ceremony.
Document 4: State Legislature (film): State Legislature is a 2007 American documentary film directed by Frederick Wiseman. It details the workings of the Idaho Legislature. Wiseman filmed for a total of 160 hours over a full 12-week session of the legislature, later editing his content down to a 3 ½ hour film. Wiseman was interested in the topic as a way to show one of the more basic political systems in America at work. It was first broadcast on PBS on June 2007.
Document 5: William D. Russell (director): William D. Russell (April 30, 1908 - April, 1968) was an American film and television director. Born in Indianapolis, Indiana on April 30, 1908, he began his Hollywood career with the 1945 film "Hollywood Victory Caravan". His career in film ended with his last film, 1951's "Best of the Badmen". In the early fifties he began directing for television with Screen Gems, and his many credits include episodes of "Father Knows Best" (he was with the show from 1954 to 1956), "Dennis the Menace", "Perry Mason", "Hazel", "Bewitched", "the Farmer's Daughter" and "Family Affair". Russell was nominated for three Emmys, first for "You Are There" in 1953, second for "the Farmer's Daughter" in 1964, and later for "Family Affair" in 1967. His directorial career ended shortly before his death in April 1968.
Document 6: Frederick Wiseman: Frederick Wiseman (born January 1, 1930) is an American filmmaker, documentarian, and theatre director. His work is "devoted primarily to exploring American institutions". He has been called "one of the most important and original filmmakers working today".
Document 7: Titicut Follies: Titicut Follies is a 1967 American Direct Cinema documentary film directed by Frederick Wiseman and filmed by John Marshall, about the patient-inmates of Bridgewater State Hospital for the criminally insane, a Massachusetts Correctional Institution in Bridgewater, Massachusetts. In 1967 the film won awards in Germany and Italy. Later on, Wiseman made a number of such films examining social institutions (e.g. hospitals, police, schools, etc.) in the United States.
Document 8: Frederick Marx: Frederick Marx is a film producer/director. He was named a Chicago Tribune Artist of the Year for 1994, a 1995 Guggenheim Fellow, and a recipient of a Robert F. Kennedy Special Achievement Award. Frederick Marx achieved international fame for his film "Hoop Dreams" (1994). It is one of the highest grossing non-musical documentaries in United States history.
Document 9: Warrior Films: Warrior Films is a 501(c)(3) non-profit film production company headquartered in Oakland, California. Founded by Oscar and Emmy nominated producer/director Frederick Marx (Hoop Dreams) in 2003, the organization produces documentary films about people overcoming social-economic barriers to create social change. Warrior Films also runs a documentary filmmaking course in partnership with colleges and universities.
Document 10: William Witney: William Nuelsen Witney (May 15, 1915 – 17 March, 2002) was an American film and television director. He is best remembered for the movie serials he co-directed with John English for Republic Pictures such as "Daredevils of the Red Circle", "Zorro's Fighting Legion" and "Drums of Fu Manchu".
Document 11: Charles Ferguson (filmmaker): Charles Henry Ferguson (born March 24, 1955) is the founder and president of Representational Pictures, Inc., and director and producer of "No End in Sight: The American Occupation of Iraq" (2007) and "Inside Job" (2010), which won the Academy Award for Best Documentary. Ferguson is also a software entrepreneur, writer and authority in technology policy.
Document 12: William Castle: William Castle (April 24, 1914 – May 31, 1977) was an American film director, producer, screenwriter, and actor.
Document 13: Drums of Fu Manchu: Drums of Fu Manchu (1940) is a 15-chapter Republic movie serial based on the character created by Sax Rohmer. Though using the title of the ninth novel in the series, it actually is based on numerous elements from throughout the series to that point, cherry-picked by the writers. It starred Henry Brandon, William Royle and Robert Kellard. It was directed by the legendary serial team of William Witney and John English and is often considered one of the best movie serials ever made.
Document 14: The Crimson Ghost: The Crimson Ghost is a 1946 Republic film serial directed by Fred C. Brannon and William Witney with Charles Quigley and Linda Stirling playing the leads. This was Witney's last serial, after a career that left him one of the most praised of all serial directors. The serial was re-released as a six-episode television series in the 1950s and as a television film called Cyclotrode "X" in 1966. In the 1990s "The Crimson Ghost" was one of only two Republic serials to be colorised. The villain of the serial, the Crimson Ghost of the title, is one of the most visually striking of the medium. The horror punk band Misfits adapted his visage as their skull logo, and he has appeared in the music video for the song "The Number of the Beast" by Iron Maiden.
Document 15: Roy William Neill: Roy William Neill (4 September 1887 – 14 December 1946) was an English film director best known for directing the last eleven of the fourteen Sherlock Holmes films starring Basil Rathbone and Nigel Bruce, made between 1943 and 1946 and released by Universal Studios.
ground_truth: no