Question: Rosa Rio providedsilent film soundtrack accompaniment for which English comic actor?
Related documents: [0]  [DOC] Rosa Rio (June 2, 1902 – May 13, 2010) was the stage name of the American theater and motion picture organist, who was known for production and arrangement. beginning her career as a silent film accompanist. She became a leading organist on network radio for soap operas and dramas. She continued to perform until the age of 107, becoming one of the oldest performers in the music industry. She provided silent film soundtrack accompaniment for such performers as Buster Keaton and Charlie Chaplin. [END] 
[1]  [DOC] Sir Charles Spencer "Charlie" Chaplin, {'1': ", '2': ", '3': 'KBE', '4': "} (16 April 1889 – 25 December 1977) was an English comic actor, filmmaker, and composer who rose to fame in the era of silent film. Chaplin became a worldwide icon through his screen persona "the Tramp" and is considered one of the most important figures in the history of the film industry. His career spanned more than 75 years, from childhood in the Victorian era until a year before his death in 1977, and encompassed both adulation and controversy. [END] 
Answer: 
Charlie Chaplin
Charlie Chaplin