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 : Karl Emil Schäfer (17 December 1891 -- 5 June 1917) was a German pilot during World War I; he became one of the major German flying aces of the war, with 30 confirmed aerial victories. 
Answer : World War I
What was the war that Karl Emil Schäfer fought in?

Context : Charnvit Kasetsiri obtained his Ph.D. in Southeast Asian History from Cornell University in 1972, under the supervision of O. W. Wolters and David K. Wyatt. 
Answer : Cornell University
What is the university where Charnvit Kasetsiri went?

Context : Cuore di cane (German: Warum bellt Herr Bobikow?, International title - Dog's Heart) is a 1976 joint Italian-German film directed by Alberto Lattuada based on a novel Heart of a Dog by Mikhail Bulgakov adapted by Mario Gallo. 
Answer : Heart of a Dog

Which is the basis of Cuore di cane?