instruction:
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
question:
In a brief period between World War I and World War II the Kingdom of Yugoslavia, successor to the Kingdom of Serbia, formed a ''Small Entente'' loose union between Czechoslovakia, Romania and Yugoslavia.
answer:
Which replaced the Kingdom of Serbia?


question:
D0g is a fictional character in the Half-Life series of video games, first introduced in Half-Life 2 in 2004.
answer:
What fictional work does D0g exist in?


question:
Making their second appearance in The Life and Death of Colonel Blimp were director Michael Powell's golden cocker spaniels, Erik and Spangle, who had previously appeared in Contraband (1940), and went on to be seen in the Powell and Pressburger films I Know Where I'm Going! (1945) and A Matter of Life and Death (US: Stairway to Heaven, 1946).
answer:

What studio produced The Life and Death of Colonel Blimp?