inputs: hypothesis: F. W. de Klerk was the President of South Africa. premise: I have, of these issues, a clear conscience, a relaxed-looking de Klerk told reporters in Cape Town less than a week after a South African newspaper said he had been implicated in apartheid atrocities. "I'm standing here to state my case, not in a defensive spirit, but in a spirit that I am owed a fair deal in my own country." De Klerk was South Africa's last white president and shared the 1993 Nobel Peace prize with Nelson Mandela for fostering racial unity and securing the country's smooth transition from apartheid to the first all-race poll in 1994.