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 : 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?

SOLUTION: constellation

PROBLEM: Context : Kujava Radinović was the second wife of King Stephen Ostoja of Bosnia and as such she was Queen of Bosnia from 1399 to 1404 and again from 1409 to 1415. 
Question : What is Kujava Radinović's spouse's name?

SOLUTION: spouse

PROBLEM: Context : Once Upon a Song (Chinese: 童話戀曲201314), is a 2015 musical drama television series produced by Hong Kong Television Network. 
Question : What studio produced Once Upon a Song?

SOLUTION:
production company