sentences:  Tomáš Garrigue Masaryk had been recognized by World War I Allies as the leader of the Provisional Czechoslovak Government, and in 1920 he was elected the country's first president.He was re-elected in 1925 and 1929, serving as President until 14 December 1935 when he resigned due to poor health.He was succeeded by Edvard Beneš.