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.

Example Input: Context : ISO 3166-2:SS is the entry for South Sudan in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1. 
Question : Who set the standards for ISO 3166-2:SS?
Example Output: standards body

Example Input: Context : After the match, Li Na was praised by the Chinese media, and her popularity throughout China was expected to grow significantly in the coming months, as she became the first Chinese national, male or female, ever to win a tennis Grand Slam title in singles, ensuring her place in the sport's history. 
Question : What city is Li Na from?
Example Output: residence

Example Input: Context : Mary Villiers, Countess of Buckingham (née Beaumont; c. 1570 -- 19 April 1632) is perhaps best known as the mother of the royal favourite Sir George Villiers, 1st Duke of Buckingham. 
Question : What is Mary Villiers, Countess of Buckingham's spouse's name?
Example Output:
spouse