instruction:
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.
question:
Context : Lida, Princess Victor of Thurn and Taxis (née Lida Eleanor Nicolls), also referred to as Princess Lida of Thurn and Taxis, (1875 -- 6 December 1965) was an American millionairess, socialite, and the wife of Prince Victor of Thurn and Taxis. 
Question : What is Princess Lida of Thurn and Taxis's spouse's name?
answer:
spouse


question:
Context : The Hired Hand is a 1971 American western film directed by Peter Fonda, with a screenplay by Alan Sharp. 
Question : Who had the role of director in The Hired Hand?
answer:
director


question:
Context : In 1961, the first M79 grenade launchers were delivered to the US Army. 
Question : Which was the official year for the approval of M79 grenade launcher?
answer:

service entry