Complex sentence: Michael Dana Gioia (born December 24,1950) is an American poet and writer who also served as the Chairman of the federal agency the National Endowment for the Arts (NEA).
Split into simpler sentences: Michael Dana Gioia (born December 24,1950) is an American poet and writer. Gioia also served as the Chairman of the federal arts agency the National Endowment for the Arts (NEA).