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 : Sud Aviation merged with Nord Aviation and Société d'études et de réalisation d'engins balistiques (SÉREB) in 1970 to form the Aérospatiale company. 
Answer : Aérospatiale

A: By what was Sud Aviation replaced?
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Q: Context : Beyond the Poseidon Adventure is a 1979 American adventure film, a sequel to the 1972 film The Poseidon Adventure. 
Answer : The Poseidon Adventure

A: Which is the basis of Beyond the Poseidon Adventure?
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Q: Context : Sid Meier's Civilization IV (also known as Civilization 4 or Civ4) is a turn-based strategy computer game and the fourth installment of the Civilization series. 
Answer : Sid Meier

A:
Who was the director of Civilization IV?
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