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 C14 Timberwolf MRSWS (Medium Range Sniper Weapon System) is a bolt-action sniper rifle built by the Canadian arms company PGW Defence Technologies Inc. In 2005 they won the contract to supply the Canadian Forces Land Command with the C14 Timberwolf MRSWS for $4.5 million. 
Question : What was the year that C14 Timberwolf entered service?
[EX A]: service entry

[EX Q]: Context : In 622, the year of Muhammad's migration to Yathrib (now Medina), Ali risked his life by sleeping in Muhammad's bed to impersonate him and thwart an assassination plot so that Muhammad could escape in safety. 
Question : What is Ali's spouse's name?
[EX A]: spouse

[EX Q]: Context : Warren McGlone (born September 17, 1969, in Philadelphia, Pennsylvania), known by the stage name Steady B, is an American hip hop emcee who, along with Schoolly D, the Fresh Prince, and Three Times Dope, was one of the first wave of Philadelphia-area emcees to gain notoriety in the mid to late 1980s. 
Question : For what crime was Steady B prosecuted?
[EX A]:
convicted of