TASK DEFINITION: Classify the relation of question with context to one of these categories: 1) award received, 2) based on, collection, 3) conflict, 4) constellation, 5) convicted of, 6) date of death, 7) director, 8) drafted by, 9) educated at, 10) medical condition, 11) military branch, 12) narrative location, 13) occupation, 14) original network, 15) parent company, 16) point in time, 17) production company, 18) residence, 19) series, 20) service entry, 21) sex or gender, 22) spouse, 23) standards body question.
PROBLEM: Context : The 7.92×57mm Mauser cartridge was adopted by the German Empire in 1905, and was the German service cartridge in both World Wars. 
Question : What year was 7.92×57mm Mauser made?

SOLUTION: service entry

PROBLEM: Context : Fifth Air Force was a United States Army Air Forces combat air force in the Pacific Theater of World War II, engaging in combat operations primarily in the Southwest Pacific AOR. 
Question : What military branch was Fifth Air Force associated with?

SOLUTION: military branch

PROBLEM: Context : Newark Athlete is an 1891 American short film directed and produced by William K. L. Dickson. 
Question : Which award was honoured to Newark Athlete?

SOLUTION:
award received