Complex sentence: The House of Pacific Relations International Cottages is a complex of 1935 Exposition cottages in San Diego's Balboa Park, in the U.S. state of California, housing 32 groups that "promote multicultural goodwill and understanding through educational and cultural programs".
Split into simpler sentences: The House of Pacific Relations International Cottages is a complex of cottages in San Diego's Balboa Park, in the U.S. state of California. Built for the 1935 California Pacific International Exposition, they currently house 32 groups that "promote multicultural goodwill and understanding through educational and cultural programs".