Task: Question Generation
Input (English): Context : The Gewehr 98 (abbreviated G98, Gew 98 or M98) is a German bolt-action Mauser rifle firing cartridges from a 5-round internal clip-loaded magazine that was the German service rifle from 1898 to 1935, when it was replaced by the Karabiner 98k. 
Subject : Gewehr 98 
Relation : service entry
Output (English): What year did Gewehr 98 come into use?