Question: What was the name of the forerunner of the bolt-action rifle chambered for the 7.92×57mm Mauser cartridge that was adopted on 21 June 1935 as the standard service rifle by the German "Wehrmacht"?
{'answer': 'Mauser M1924', 'supporting_facts': [['Chiang Kai-shek rifle', 0], ['Karabiner 98k', 0]]}