Question: What South African politician formed a government of national unity with nelson Mandela's African National Congress and Mangosuthu Buthelezi's Inkatha Freedom Party?
Sentence (from "22nd South African Parliament"): Nelson Mandela's African National Congress formed a government of national unity with F. W. de Klerk's National Party and Mangosuthu Buthelezi's Inkatha Freedom Party.
Relevant evidence: Yes