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.

[Q]: 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?
[A]: service entry


[Q]: Context : Messier 105 was discovered by Pierre Méchain on 24 March 1781, just a few days after he discovered the nearby galaxies Messier 95 and Messier 96. 
Question : Which constellation is formed by Messier 105?
[A]: constellation


[Q]: Context : Joan Vollmer (February 4, 1923 -- September 6, 1951) was the most prominent female member of the early Beat Generation circle. 
Question : Is Joan Vollmer a male or female?
[A]:
sex or gender