TASK DEFINITION: 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.
PROBLEM: Context : Design of the MILAN started in 1962, it was ready for trials in 1971, and was accepted for service in 1972. 
Answer : 1972

SOLUTION: What year was the service entry date for MILAN?

PROBLEM: Context : 54 Piscium b (HD 3651 b), occasionally catalogued as 54 Piscium Ab in order to differentiate from the brown dwarf in the system, is an extrasolar planet approximately 36 light-years away in the constellation of Pisces. 
Answer : Pisces

SOLUTION: Which was the constellation for 54 Piscium b?

PROBLEM: Context : Natale sul Nilo (Christmas on the Nile) is a 2002 Italian comedy film directed by Neri Parenti. 
Answer : Neri Parenti

SOLUTION:
Who had the role of director in Natale sul Nilo?