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 : NGC 185 was discovered by William Herschel on November 30, 1787, and he cataloged it ``H II.707''. 
Question : What constellation does NGC 185 belong to?
[EX A]: constellation

[EX Q]: Context : Lakmé is an opera in three acts by Léo Delibes to a French libretto by Edmond Gondinet and Philippe Gille. 
Question : The Lakmé is based upon what?
[EX A]: based on

[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