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.

[EX Q]: Context : London R. Ferebee (1849 -- AFT 1883) was an African Methodist Episcopal Zion Church preacher and author, who was born into slavery on August 18, 1849, in a place called Big Ditch, in Currituck County, North Carolina. 
Answer : 1883
[EX A]: What date did London R. Ferebee die on?

[EX Q]: Context : Sonia Mary Brownell (25 August 1918 -- 11 December 1980), better known as Sonia Orwell, was the second and last wife of writer George Orwell, whose real name was Eric Arthur Blair. 
Answer : George Orwell
[EX A]: What is Sonia Orwell's spouse's name?

[EX Q]: Context : The Fedorov Avtomat (also anglicized as Federov, Russian: Автомат Фёдорова) was an automatic rifle, designed by Vladimir Grigoryevich Fyodorov in 1915 and produced in the Russian Empire and later in the Russian Soviet Federative Socialist Republic. 
Answer : 1915
[EX A]:
What year was Fedorov Avtomat introduced?