Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : The Farmer from Texas (German: Der Farmer aus Texas) is a 1925 German silent comedy film directed by Joe May and starring Mady Christians, Willy Fritsch and Lillian Hall-Davis. 
Answer : Joe May
Who had the role of director in The Farmer from Texas?

Context : ISO 3166-2:MR is the entry for Mauritania in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1. 
Answer : International Organization for Standardization
Who set the standards for ISO 3166-2:MR?

Context : At the eve of World War II, on 1 September 1939, Eugen Müller was assigned to the Headquarters Chief of Staff of the Army, under the command of Generaloberst Franz Halder. 
Answer : World War II

In what war was Eugen Müller in?