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 : ISO 3166-2:KH is the entry for Cambodia 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:KH?

Output: standards body


Input: Consider Input: Context : LOT Charters launched flight operations on 1 June 2009. 
Question : What is LOT Charters's parent company?

Output: parent company


Input: Consider Input: Context : Estêvão de Brito was born in Serpa, Portugal. 
Question : What was Estêvão de Brito's career?


Output: occupation