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.

Context : Michiel van Musscher was born in Rotterdam in January 1645 and was later baptized on 27 January. 
Question : What kind of  occupation does Michiel van Musscher have?
occupation

Context : Rudolf Gerhardt (26 March 1896 -- 10 November 1964) was a highly decorated Oberst in the Wehrmacht during World War II. He was also a recipient of the Knight's Cross of the Iron Cross. 
Question : What award was received by Rudolf Gerhardt?
award received

Context : The Soviets had 411 T-28 tanks when the Germans invaded the Soviet Union in June 1941. 
Question : What year was T-28 made?

service entry