question: What nationality is the composer of film White Horse Inn (1948 Film)?
context: [["Walter Ulfig", ["Walter Ulfig was a German composer of film scores."]], ["Thomas Morse", ["Thomas Morse( born June 30, 1968) is an American composer of film and concert music."]], ["Bert Grund", ["Bert Grund( 1920\u20131992) was a German composer of film scores."]], ["Alonso Mudarra", ["Alonso Mudarra( c. 1510 \u2013 April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.", "He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar."]], ["Tarcisio Fusco", ["Tarcisio Fusco was an Italian composer of film scores.", "He was the brother of the composer Giovanni Fusco and the uncle of operatic soprano Cecilia Fusco."]], ["Henri Verdun", ["Henri Verdun( 1895\u20131977) was a French composer of film scores."]], ["White Horse Inn (1948 film)", ["White Horse Inn (Spanish: La hoster\u00eda del caballito blanco) is a 1948 Argentine musical comedy film directed by Benito Perojo and written by Juan Carlos Muello based upon the homonymous opera \"White Horse Inn\" by Ralph Benatzky and Robert Stolz.", "It was premiered on April 15, 1948.", "The plot is about a famous singer who falls in love with the owner of an inn."]], ["Amedeo Escobar", ["Amedeo Escobar( 1888\u20131973) was an Italian composer of film scores."]], ["Abe Meyer", ["Abe Meyer( 1901 \u2013 1969) was an American composer of film scores."]], ["Ralph Benatzky", ["Ralph Benatzky (5 June 1884 \u2013 16 October 1957), born in Moravsk\u00e9 Bud\u011bjovice as Rudolf Josef Franti\u0161ek Benatzki, was an Austrian composer of Czech origin (when Benatzky was born Bohemia was part of the Austrian Empire; Benatzky mostly worked in Vienna).", "He composed operas and operettas, such as \"Casanova\" (1928)\", Die drei Musketiere\" (1929),", "\"Im wei\u00dfen R\u00f6ssl\" (1930) and \"Meine Schwester und ich\" (1930).", "He died in Z\u00fcrich, Switzerland."]]]
supporting_facts: [["White Horse Inn (1948 film)", 0], ["Ralph Benatzky", 0]]
evidences: [["La hoster\u00eda del caballito blanco", "composer", "Ralph Benatzky"], ["Ralph Benatzky", "country of citizenship", "Czech"]]
answer: Czech