TASK DEFINITION: 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.
PROBLEM: Context : Midvinterblot (Swedish for Midwinter's sacrifice) is a painting created for the hall of the central staircase in Nationalmuseum in Stockholm by the Swedish painter Carl Larsson in 1915. 
Answer : Nationalmuseum

SOLUTION: What is the name of the place where Midvinterblot can be found?

PROBLEM: Context : Gelnhausen railway (Hungen--Gießen) was opened on 29 December 1869 and Hungen station went into operation. 
Answer : 29 December 1869

SOLUTION: When was Hungen station opened?

PROBLEM: Context : Joachim Boosfeld (1 June 1922 -- 19 June 2015) was a Hauptsturmführer (Chief Storm Leader/Captain) in the Waffen-SS during World War II. He was awarded the Knight's Cross of the Iron Cross, which was awarded to recognize extreme battlefield bravery or successful military leadership by Nazi Germany during World War II. He was also one of 631 men to be awarded the Close Combat Clasp in Gold. 
Answer : Waffen-SS

SOLUTION:
What was the military branch for Joachim Boosfeld?