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 : 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 A]: military branch

[EX Q]: Context : HD 43848 is a 9th magnitude K-type subgiant star located approximately 123 light-years away in the constellation of Columba. 
Question : What is the name of the constellation which HD 43848 belongs?
[EX A]: constellation

[EX Q]: Context : Private First Class Enrique Romero-Nieves born in Culebra, Puerto Rico, was a member of the United States Marine Corps who served in the Korean War. 
Question : Which war did Enrique Romero-Nieves serve in?
[EX A]:
conflict