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.

[Q]: 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?
[A]: conflict


[Q]: Context : While Robin searches for her 'Something Old', Lily and Marshall prepare for their 'Something New' by packing up for their move to Italy. 
Question : What is the series that Something Old is a part of?
[A]: series


[Q]: Context : Ding Ling was born into a gentry family in Linli, Hunan province. 
Question : What is Ding Ling's spouse's name?
[A]:
spouse