Complex sentence: Michael Ngaleku Shirima (born 1943) is a Tanzanian businessman, entrepreneur and philanthropist, best known as the founder and current Chairman of Precision Air, Tanzania's largest privately-owned airline.
Split into simpler sentences: Michael Ngaleku Shirima (born 1943) is a Tanzanian businessman, entrepreneur, and philanthropist. He is the founder and current chairman of Precision Air, Tanzania's largest privately-owned airline.