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:TT is the entry for Trinidad and Tobago 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:TT?

Context : Empress Dowager Xu (徐太后, personal name unknown) (died 926), honored as Empress Dowager Shunsheng (順聖太后) during the reign of her son Wang Yan (né Wang Zongyan), known as Consort Xu with the imperial consort rank Xianfei (徐賢妃) during the reign of her husband Wang Jian, was an empress dowager of the Chinese Five Dynasties and Ten Kingdoms period state Former Shu. 
Answer : Wang Jian
What is Empress Dowager Xu's spouse's name?

Context : John Carlyle Herbert (August 16, 1775 -- September 1, 1846) was an American politician. 
Answer : politician

What was John Carlyle Herbert's occupation?