Complex sentence: Colonel Ely Ould Mohamed Vall (born 1953 in Nouakchott) was the military leader of Mauritania from a coup d'état in August 2005 until 19 April 2007, when he relinquished power to an elected government.
Split into simpler sentences: Colonel Ely Ould Mohamed Vall (born 1953 in Nouakchott) is a political and military figure in Mauritania. He served as the military leader of Mauritania following a coup d'état in August 2005 until 19 April, 2007, when he relinquished power to an elected government.