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 : Max Matern (19 January 1902 -- 22 May 1935) was a member of the Communist Party of Germany (KPD). 
Question : Which crime led to the conviction of Max Matern?

A: convicted of
****
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 : Luke Richardson was selected 7th overall by the Toronto Maple Leafs in the 1987 NHL Entry Draft after two successful seasons with the Peterborough Petes of the OHL. 
Question : Which team does Luke Richardson play for?

A:
drafted by
****