Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : John Ross Macduff (23 May 1818 - 30 April 1895) was a Scottish divine and a prolific author of religious essays. 
Question : Which is the date of death for John Ross Macduff?
[A]: 30 April 1895


[Q]: Context : Grêmio Esportivo Tiradentes played their home games at Serejão. 
Question : In which athletic center does Grêmio Esportivo Tiradentes play their home games?
[A]: Serejão


[Q]: Context : ISO 3166-2:AT is the entry for Austria 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:AT?
[A]:
International Organization for Standardization