Answer the following question: Information: - A silent film is a film with no synchronized recorded sound, especially with no spoken dialogue. The silent film era lasted from 1895 to 1936. In silent films for entertainment, the dialogue is transmitted through muted gestures, mime and title cards which contain a written indication of the plot or key dialogue. The idea of combining motion pictures with recorded sound is nearly as old as film itself, but because of the technical challenges involved, synchronized dialogue was only made practical in the late 1920s with the perfection of the Audion amplifier tube and the introduction of the Vitaphone system. During silent films, a pianist, theatre organist, or, in large cities, even a small orchestra would often play music to accompany the films. Pianists and organists would either play from sheet music or improvise; an orchestra would play from sheet music. - Chicago is a 1927 comedy - drama silent film produced by Cecil B. DeMille and directed by Frank Urson . - Frank John Urson (March 21, 1887 August 17, 1928) was an American silent film director and cinematographer from Chicago, Illinois. Originally a photographer, he moved on to cinematography and film directing for the Thanhouser Company in New Rochelle, New York. He is also credited with acting in one film "Her Gallant Knights" which starred William Garwood in 1913. Urson directed "Changing Husbands". He is perhaps best known for his 1927 "Chicago", produced by Cecil B. DeMille. - The Thanhouser Company (later the Thanhouser Film Corporation) was one of the first motion picture studios, founded in 1909 by Edwin Thanhouser, his wife Gertrude and his brother-in-law Lloyd Lonergan. It operated in New York City until 1918, producing over a thousand films. - A pianist is an individual musician who plays the piano. Most forms of Western music can make use of the piano. Consequently, pianists have a wide variety of repertoire and styles to choose from, including traditionally classical music, Jazz, blues and all sorts of popular music, including rock music. Most pianists can, to a certain extent, play other keyboard-related instruments such as the synthesizer, harpsichord, celesta and the organ and keyboard. Perhaps the greatest pianist of all time was Franz Liszt, whose piano mastery was described by Anton Rubinstein: "In comparison with Liszt, all other pianists are children". - Her Gallant Knights is a 1913 American silent short romantic comedy film starring William Garwood, Riley Chamberlin, James Cruze, Florence La Badie and Frank Urson. - Changing Husbands is a 1924 American silent comedy starring Leatrice Joy, and Victor Varconi, directed by Paul Iribe and Frank Urson and written by Sada Cowan and Howard Higgin. The runtime is 70 minutes. It is preserved in the Library of Congress collection. What is the relationship between 'chicago ' and 'frank john urson'?
Answer:
director