Complex sentence: Founded in 1910, Chaminade College Preparatory School is an independentCatholic Marianist school for boys in grades six through twelve in the Roman Catholic Archdiocese of Saint Louis.
Split into simpler sentences: Founded in 1910, Chaminade College Preparatory School is an independent Catholic Marianist school for boys in grades six through twelve. It is located in the Roman Catholic Archdiocese of Saint Louis.