Question: Hanne Harlem is the sister of a former prime minister that served as  Director-General of the World Health Organization during what years?
Sentence (from "Gro Harlem Brundtland"): Gro Harlem Brundtland (] ; born Gro Harlem, 20 April 1939) is a Norwegian politician, who served three terms as Prime Minister of Norway (1981, 1986–89, and 1990–96) and as Director-General of the World Health Organization from 1998 to 2003.
Relevant evidence: Yes