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.

Q: Context : Trace of Stones (German: Spur der Steine) is a 1966 East German film by Frank Beyer. 
Answer : Spur der Steine

A: The Trace of Stones is based upon what?
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Q: Context : BS 7750 supplied the template for the development of the ISO 14000 series in 1996, by the International Organization for Standardization, which has representation from committees all over the world (ISO) (Clements 1996, Brorson & Larsson, 1999). 
Answer : International Organization for Standardization

A: Who set the standards for ISO 14000?
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Q: Context : Ava Helen Pauling (December 24, 1903 -- December 7, 1981) was an American human rights activist and wife of Nobel Prize winner Linus Pauling. 
Answer : Linus Pauling

A:
What is Ava Helen Pauling's spouse's name?
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