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 Input:
Context : Lý Tòng Bá (1931 -- 22 February 2015, Las Vegas, Nevada) is a former brigadier general of the South Vietnamese Army of the Republic of Vietnam. 
Question : What military branch was Lý Tòng Bá in?

Ex Output:
military branch


Ex Input:
Context : Herbert Lumsden was born in the United Kingdom at Clanfield, Oxfordshire, England on 8 April 1897, the son of John Lumsden. 
Question : What military branch was Herbert Lumsden associated with?

Ex Output:
military branch


Ex Input:
Context : Sima Yi's elder brother Sima Lang led the family to their ancestral home in Wen County (温縣; present-day Wen County, Henan), and then, correctly predicting that it would become a battlefield, moved them again to Liyang (黎陽; present-day Xun County, Hebi, Henan). 
Question : What is Sima Yi's spouse's name?

Ex Output:

spouse