Question: Are William S. Hart and Valie Export both video artists?

full_context: Document 1: William Garwood: William Davis Garwood, Jr. (April 28, 1884 – December 28, 1950) was an American stage and film actor and director of the early silent film era in the 1910s.
Document 2: Tom Mix filmography: Tom Mix (1880–1940) was an American motion picture actor, director, and writer whose career spanned from 1910 until 1935. During this time he appeared in 270 films and established himself as the screen's most popular cowboy star. Mix's flair for showmanship set the standard for later cowboy heroes such as Gene Autry and Roy Rogers. His horse Tony also became a celebrity who received his own fan mail.
Document 3: William S. Hart: William Surrey Hart (December 6, 1864 – June 23, 1946) was an American silent film actor, screenwriter, director and producer. He is remembered as a foremost western star of the silent era who "imbued all of his characters with honor and integrity." During the late 1910s and early 1920s, he was one of the most consistently popular movie stars, frequently ranking high among male actors in popularity contests held by movie fan magazines.
Document 4: Renate Bertlmann: Renate Bertlmann (28 February 1943 in Vienna) is an Austrian feminist avant-garde artist, living and working in Vienna. She is a contemporary of Birgit Jürgenssen and VALIE EXPORT, and her work focuses on the relationship between masculine and feminine forms.
Document 5: The Bargain (1914 film): The Bargain is a 1914 American Western film starring William S. Hart. It was the first feature film starring Hart, who would go on to become the most popular Western actor of the silent film era. In 2010, it was added to the National Film Registry.
Document 6: Vija Celmins: Vija Celmins is an acclaimed Latvian-American visual artist best known for photo-realistic paintings and drawings of natural environments and phenomena such as the ocean, spider webs, star fields, and rocks. Her earlier work included pop sculptures and monochromatic representational paintings. Based in New York City, she has been the subject of over forty solo exhibitions since 1965, and major retrospectives at the Museum of Modern Art, Whitney Museum of American Art, Los Angeles County Museum of Art, Institute of Contemporary Arts, London, and Centre Pompidou, Paris.
Document 7: William Boyd (actor): William Lawrence Boyd (June 5, 1895 – September 12, 1972) was an American film actor known for portraying the cowboy hero Hopalong Cassidy.
Document 8: Viennese Actionism: Viennese Actionism was a short and violent movement in 20th-century art. It can be regarded as part of the many independent efforts of the 1960s to develop "performance art" (Fluxus, happening, action painting, body art, etc.). Its main participants were Günter Brus, Otto Mühl, Hermann Nitsch, and Rudolf Schwarzkogler. As "actionists", they were active between 1960 and 1971. Most have continued their artistic work independently from the early 1970s onwards.
Document 9: Valie Export: Valie Export (often written as 'VALIE EXPORT') (born May 17, 1940 in Linz as Waltraud Lehner, later Waltraud Höllinger) is an Austrian artist. Her artistic work includes video installations, body performances, expanded cinema, computer animations, photography, sculptures and publications covering contemporary arts.
Document 10: William Desmond Taylor: William Desmond Taylor (26 April 1872 – 1 February 1922) was an Irish-born American director and actor. He was a popular figure in the growing Hollywood motion-picture colony of the 1910s and early 1920s, having directed 59 silent films between 1914 and 1922 and acted in 27 between 1913 and 1915.
Document 11: William K. Howard: William K. Howard (June 16, 1899 – February 21, 1954) was an American film director, writer, and producer. Considered one of Hollywood's leading directors, he directed over 50 films from 1921 to 1946, including "The Thundering Herd" (1925), "The Power and the Glory" (1933), "Fire Over England" (1937), and "Johnny Come Lately" (1943).
Document 12: Howard Hawks: Howard Winchester Hawks (May 30, 1896December 26, 1977) was an American film director, producer and screenwriter of the classic Hollywood era. Critic Leonard Maltin called him "the greatest American director who is not a household name."
Document 13: The Practice of Love: The Practice of Love (German: "Die Praxis der Liebe" ) is a 1985 Austrian drama film written by and directed by Valie Export. It was entered into the 35th Berlin International Film Festival.
Document 14: Valina: Valina was an indie, Noise Rock, Post-Hardcore group from Linz / Austria., which existed from 1995 to 2016. They released several records on Trost Records and played many shows in Europe, United States, Russia, Mexico and South America. The last four full-length albums were recorded by Steve Albini in Chicago. The band began recording music in 1997, releasing several 7-inch records and full-length albums. The full-length albums have been released on their Austrian label Trost Records. Both Vagabond Epode EP have been released in the states by 54' 40' or Fight!. On April 14, 2009, Valina's album, A tempo! a tempo!, was released throughout the United States by Joyful Noise Recordings. The album "Container" was released on March 28, 2014, and their final album "In Position" was released in January 2016.
Document 15: Import/Export: Import/Export is an Austrian film by the director Ulrich Seidl from 2007. It was nominated for the Palme d'Or at the 2007 Cannes Film Festival and won the Grand Prix - Golden Apricot reward at the Yerevan International Film Festival. The film was shot in Vienna, Ukraine, Romania, the Czech Republic and Slovakia from 2005 until May 2007 on 16mm film. Simultaneously, the film follows a nurse from Ukraine searching for a better life in the West and an unemployed security guard from Austria heading East for the same reason.
ground_truth: yes