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.  - David Lythgoe (born c.1880) was an American silent film actor of the early period. He is best known for his work between 1912 and 1915 in short film under the directorship of Tom Ricketts.  - Louise Lester (August 8, 1867  November 18, 1952) was an American silent film actress. She was the first female star of Western films.  - When Empty Hearts Are Filled is a 1915 American silent short drama film directed by Archer MacMackin starring Louise Lester , Vivian Rich , and Harry von Meter .  - New Rochelle is a city in Westchester County, New York, United States, in the southeastern portion of the state.  - California is the most populous state in the United States and the third most extensive by area. Located on the western (Pacific Ocean) coast of the U.S., California is bordered by the other U.S. states of Oregon, Nevada, and Arizona and shares an international border with the Mexican state of Baja California. The state capital is Sacramento. Los Angeles is California's most populous city, and the country's second largest after New York City. The state also has the nation's most populous county, Los Angeles County, and its largest county by area, San Bernardino County.  - The Altar of Ambition is a 1915 American silent short film directed by Archer MacMackin starring Jack Richardson, Louise Lester, Vivian Rich, Harry von Meter, and David Lythgoe.  - Vivian Rich (May 26, 1893  November 17, 1957) was an American silent film actress.  - 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.  - Harry von Meter (March 20, 1871 in Malta Bend, Missouri  June 2, 1956 in Sawtelle, California) was an American silent film actor. He was signed by the Thanhouser Company based in New Rochelle, New York in 1912, moving to American Film Studios a year or two later, and starred in about 200 films until 1929. He appeared in the 1923 film "The Hunchback of Notre Dame" as Mons. Neufchatel.  - Archer MacMackin (February 7, 1888  February 8, 1961) was an American silent film director, producer, and screenwriter. McMackin directed over seventy-three films between 1912 and 1916 directing films such as "When Empty Hearts Are Filled" and the "The Altar of Ambition" in 1915 working with actors such as Harry von Meter, Louise Lester, Vivian Rich and David Lythgoe. His career reached its height in 1916 where in that year alone he directed thirty short films.  - An actor (or actress for females; see terminology) is a person who portrays a character in a performance. The actor performs "in the flesh" in the traditional medium of the theatre, or in modern mediums such as film, radio, and television. The analogous Greek term is, literally "one who answers". The actor's interpretation of their role pertains to the role played, whether based on a real person or fictional character. Interpretation occurs even when the actor is "playing themselves", as in some forms of experimental performance art, or, more commonly; to act, is to create, a character in performance.  - Missouri (see pronunciations) is a state in the Midwestern region of the United States, achieving statehood in 1821. With over six million residents, it is the eighteenth most populous state and host to the mean center of United States population. The largest urban areas are St. Louis, Kansas City, Springfield, and Columbia. The capitol is in Jefferson City on the Missouri River. The state is the twenty-first most extensive by area and is geographically diverse. The Northern Plains were once covered by glaciers, then tallgrass prairie, and now the deep soils yield great agricultural productivity. In the South are the Ozarks, a forested highland, providing timber, minerals, and recreation. The Mississippi River forms the eastern border of the state, eventually flowing into the swampy Missouri Bootheel.    After reading the paragraphs above, we are interested in knowing the entity with which 'when empty hearts are filled' exhibits the relationship of 'instance of'. Find the answer from the choices below.  Choices: - altar  - august  - border  - capital  - city  - company  - corporation  - county  - director  - drama  - entertainment  - february  - film director  - hearts  - key  - los angeles  - march  - may  - meter  - mons  - music  - nation  - ocean  - orchestra  - person  - population  - prairie  - radio  - short film  - silent film  - silent short film  - six  - sound  - state  - system  - television  - term  - terminology  - three  - title  - two  - work
Answer:
silent short film