Question: What Nigerian president appointed the Managing Director of the NPA in 2016?
Sentence (from "Rilwanu Lukman"): Rilwanu Lukman (26 August 1938 – 21 July 2014) was a Nigerian engineer who held several ministerial positions in the Nigerian Federal government before becoming Secretary General of OPEC (Organization of the Petroleum Exporting Countries) from 1 January 1995 to 31 December 2000.
Relevant evidence: No