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.

[EX Q]: Context : Norway - Upgraded to NASAMS 2. 
Question : Which was the official year for the approval of NASAMS?
[EX A]: service entry

[EX Q]: Context : The Source Family is a 2012 feature documentary film directed by Jodi Wille and Maria Demopoulos that recounts the story of Father Yod, Ya Ho Wa 13 and the Source Family. 
Question : Who served as director for The Source Family?
[EX A]: director

[EX Q]: Context : Clement Wilks (15 February 1819 -- 2 May 1871) was a notable Civil Engineer and Architect in colonial Victoria, Australia. 
Question : What kind of  occupation does Clement Wilks have?
[EX A]:
occupation