Task: Question Generation
Input (English): Context : ISO 3166-3 is part of the ISO 3166 standard published by the International Organization for Standardization (ISO), and defines codes for country names which have been deleted from ISO 3166-1 since its first publication in 1974. 
Subject : ISO 3166-3 
Relation : standards body
Output (English): Who set the standards for ISO 3166-3?