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 : Mateu Morral Roca (Mateo in Spanish; 1880, Sabadell -- 2 June 1906, Torrejón de Ardoz -- part of Madrid) was a Spanish anarchist, known for murdering fifteen people in a terrorist bombing in an attempt to assassinate King Alfonso XIII of Spain and his bride Victoria Eugenia (on 31 May 1906, the day the two were married). 
Question : What city is Mateu Morral associated with?

SOLUTION: residence

PROBLEM: 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?

SOLUTION: conflict

PROBLEM: Context : Mack Barham received his undergraduate degree from the University of Colorado in Boulder, Colorado. 
Question : Where did Mack Barham study or work?

SOLUTION:
educated at