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 : Rudolf Gerhardt (26 March 1896 -- 10 November 1964) was a highly decorated Oberst in the Wehrmacht during World War II. He was also a recipient of the Knight's Cross of the Iron Cross. 
Answer : Knight's Cross of the Iron Cross
What award was received by Rudolf Gerhardt?

Context : ``The Cartridge Family'' is the fifth episode of The Simpsons' ninth season, which originally aired on Fox in the United States on November 2, 1997. 
Answer : The Simpsons
What series is the episode The Cartridge Family part of?

Context : Pantyhose Hero, also known as Pantyhose Killer, is a 1990 Hong Kong action comedy film produced by and directed by Sammo Hung. 
Answer : Sammo Hung

Which director worked on Pantyhose Hero?