Part 1. 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.
Part 2. Example
Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School. 
Question : What was Isaac Nicola's city of birth?
Answer: place of birth
Explanation: The question is about the place of birth of the Isaac Nicola. Hence the output is relevant and valid
Part 3. Exercise
Context : He was born on January 2, 1869 in Brooklyn, New York to Philip Bayard Veiller. 
Question : What kind of  occupation does Bayard Veiller have?
Answer:
occupation