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 : The Paveway IV entered service with the Royal Navy in 2008. 
Question : Which was the official year for the approval of Paveway IV?
[EX A]: service entry

[EX Q]: Context : The French police continued to use the MAS-38 after World War II until it was replaced in the 1950s by the MAT-49 submachine gun. 
Question : Which was the official year for the approval of MAS-38?
[EX A]: service entry

[EX Q]: Context : Olga Savchuk currently resides in her Nassau, Bahamas. 
Question : What city is Olga Savchuk associated with?
[EX A]:
residence