TASK DEFINITION: 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.
PROBLEM: Context : The Paveway IV entered service with the Royal Navy in 2008. 
Question : Which was the official year for the approval of Paveway IV?

SOLUTION: service entry

PROBLEM: Context : Eusebius Mandyczewski was born in the Romanian village of Molodiya (then Austria-Hungary; now Ukraine, Hlyboka Raion) on 18 August 1857. 
Question : What was Eusebius Mandyczewski's career?

SOLUTION: occupation

PROBLEM: Context : Bradley Air Services Limited, operating as First Air, is an airline headquartered in Kanata, a suburb of Ottawa, Ontario, Canada. 
Question : Which company is the parent company of First Air?

SOLUTION:
parent company