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.

Input: Consider Input: Context : One night, however, Laius was drunk and fathered Oedipus with her. 
Question : What is Laius's spouse's name?

Output: spouse


Input: Consider Input: Context : Greta Knutson or Knutson-Tzara (also known as Greta Knutson; 1899--1983) was a Swedish modernist visual artist, art critic, short story writer and poet. 
Question : What was the date of death of Greta Knutson?

Output: date of death


Input: Consider Input: Context : James Charles Prevost (1810--1891) was an admiral in the British Royal Navy. 
Question : With which military branch did James Charles Prevost serve with?


Output: military branch