Complex sentence: Arturo Rawson (June 4,1885--October 8,1952) was an Argentine politician, military officer, and the provisional President of the Republic from June 4,1943 to June 7,1943.
Split into simpler sentences: Arturo Rawson (June 4,1885--October 8,1952) was an Argentine politician, military officer, and the provisional President of the Republic for a period of less than forty-eight hours. He presided as President from June 4,1943 to June 7,1943.