Complex sentence: The Commonwealth Foundation is an independent, non-profit research and educational institute based in Harrisburg, PA that develops and advances public policies based on the nation's founding principles of limited constitutional government, economic freedom, and personal responsibility for one's actions.
Split into simpler sentences: The Commonwealth Foundation is an independent, non-profit research and educational institute based in Harrisburg, Pennsylvania. The foundation develops and advances public policies based on the nation's founding principles of limited constitutional government, economic freedom, and personal responsibility for one's actions.