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 : Wolf-Dietrich Wilcke (11 March 1913 -- 23 March 1944) was a German Luftwaffe pilot during World War II, a fighter ace credited with 162 enemy aircraft shot down in 732 combat missions. 
Question : Which war did Wolf-Dietrich Wilcke serve in?

A: conflict
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Q: Context : Petteri Nummelin started playing ice hockey in his hometown Turku and played for a-junior team of TPS for 3 seasons after which he played for Kiekko-67 in the 1. 
Question : Player Petteri Nummelin played for which team?

A: drafted by
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Q: Context : That Hideous Strength (subtitled A Modern Fairy-Tale for Grown-Ups) is a 1945 novel by C. S. Lewis, the final book in Lewis's theological science fiction Space Trilogy. 
Question : To which series does That Hideous Strength belong?

A:
series
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