Suppose Nelson Mandela was a South African anti-apartheid revolutionary and political leader who served as the country's first black president from 1994 to 1999. Mandela was a key figure in the fight against apartheid and was awarded the Nobel Peace Prize in 1993 for his efforts to peacefully end racial segregation in South Africa.
Can we infer that "Nelson Mandela was the president of Zimbabwe."? Yes, no, or maybe?