Task: Explanation
Input (English): Georg Herbert Mehlhorn (24 March 1903 – 30 October 1968) was an SS "Oberführer", Nazi legal expert, and Gestapo official. Mehlhorn was involved in the camouflage of the mass graves of the Jewish victims in the forest of the Chełmno extermination camp. He operated gas wagons at the Chełmno camp to murder the sick Jewish prisoners who were sent from the Wartheland ghettoes. He was also a director of Stiftung Nordhav, a front organization of the Sicherheitsdienst founded in 1939 by Reinhard Heydrich, one of the main architects of the Holocaust. He was the mentor of SS-"Brigadeführer" Walter Schellenberg while at the "SS-Hauptamt". Question: During what war did Herbert Melhorn serve as director of Stiftung Nordhav, an organization formed by Reinhard Heydrich, who was also a main architect of the Holocaust? Answer: World War II
Output (English):  He was also a director of Stiftung Nordhav, a front organization of the Sicherheitsdienst founded in 1939 by Reinhard Heydrich, one of the main architects of the Holocaust.