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 : Bears and Bad Men is a 1918 American silent comedy film directed by Larry Semon and featuring Stan Laurel. 
Question : Who was the director for Bears and Bad Men?

Ex Output:
director


Ex Input:
Context : Wolfgang Kretzschmar (2 July 1907 -- 27 December 1944) was a German officer serving during World War II and recipient of the coveted Knight's Cross of the Iron Cross with Oak Leaves and Swords (German: Ritterkreuz des Eisernen Kreuzes mit Eichenlaub und Schwertern). 
Question : In which war did Wolfgang Kretzschmar serve?

Ex Output:
conflict


Ex Input:
Context : The Private Life of a Masterpiece was a BBC arts documentary series which told the stories behind great works of art; 29 episodes of the series were broadcast on BBC Two, commencing in 2001 and ending in 2010. 
Question : What network does The Private Life of a Masterpiece air on?

Ex Output:

original network