Complex sentence: His father, Abdul Zahir, was a royal court doctor, minister of health, Prime Minister of Afghanistan between 1971 and 1972, speaker of the parliament and an influential figure in King Zahir Shah's era who helped write the 1964 Constitution of Afghanistan.
Split into simpler sentences: His father, Abdul Zahir, was a royal court doctor who served as minister of health and Prime Minister of Afghanistan between 1971 and 1972. He was a speaker of the parliament and an influential figure in King Zahir Shah's era who helped write the 1964 Constitution of Afghanistan.