Complex sentence: Mauricio Hernán Díaz Castro (born August 7,1968) is a retired long-distance runner from Chile, who represented his native country at the 2000 Summer Olympics in Sydney, Australia.
Split into simpler sentences: Mauricio Hernán Díaz Castro (born August 7,1968) is a retired long-distance runner from Chile. He represented his native country at the 2000 Summer Olympics in Sydney, Australia.