Complex sentence: The population of Cascades was 524,956 in 2006, and it is the least populous region in Burkina Faso and contains 3.8% of all Burkinabé.
Split into simpler sentences: The population of Cascades was 524,956 in 2006. It is the least populous region in Burkina Faso and contains 3.8% of all Burkinabé.