Question: Information:  - King Wallis Vidor (February 8, 1894  November 1, 1982) was an American film director, film producer, and screenwriter whose career spanned nearly seven decades. In 1979, he was awarded an Honorary Academy Award for his "incomparable achievements as a cinematic creator and innovator." He was nominated five times for a Best Director Oscar, and won eight international film awards during his career. Vidor's best known films include "The Big Parade" (1925), "The Crowd" (1928), "Stella Dallas" (1937), and "Duel in the Sun" (1946). (He is not related to fellow director Charles Vidor)  - Poor Relations is a 1919 American silent drama film directed by King Vidor .  - Charles Vidor (July 27, 1900June 4, 1959) was a Hungarian film director.  - The Big Parade is a 1925 American silent film directed by King Vidor and starring John Gilbert, Renée Adorée, Hobart Bosworth, and Claire McDowell. Adapted by Harry Behn from the play by Joseph W. Farnham and the autobiographical novel "Plumes" by Laurence Stallings, the film is about an idle rich boy who joins the US Army's Rainbow Division and is sent to France to fight in World War I, becomes a friend of two working class men, experiences the horrors of trench warfare, and finds love with a French girl.    Given the paragraphs above, decide what entity has the relation 'instance of' with 'silent film'.
Answer:
poor relations