Task: Question Understanding
Input (English): 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. 
Question : What year was Fedorov Avtomat introduced?
Output (English): service entry