Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : ISO 3166-2:SI is the entry for Slovenia 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. 
Answer : International Organization for Standardization
Who set the standards for ISO 3166-2:SI?

Context : ``Denver Spiderman'' was the name given to Theodore Edward Coneys (November 10, 1882 -- May 16, 1967), an American drifter who committed a murder in 1941 and subsequently occupied the attic of the victim's home for nine months. 
Answer : murder
Which crime led to the conviction of Theodore Edward Coneys?

Context : The Thirteenth Floor is a 1999 science fiction crime thriller film directed by Josef Rusnak and loosely based upon Simulacron-3 (1964), a novel by Daniel F. Galouye. 
Answer : Simulacron-3

Which is the basis of The Thirteenth Floor?