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.

Ex Input:
Context : Betty Fibichova (16 March 1846 -- 20 May 1901) was a Czechoslovak opera singer and the wife of composer Zdenek Fibich.
Answer : Zdenek Fibich

Ex Output:
What is Betty Fibichova's spouse's name?

Ex Input:
Context : The Kensington Canal was a canal, about two miles long, opened in 1828 in London from the River Thames at Chelsea, along the line of Counter's Creek, to a basin near Warwick Road in Kensington.
Answer : 1828

Ex Output:
What was the date of the opening of Kensington Canal?

Ex Input:
Context : ISO 3166-2:CF is the entry for the Central African Republic 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

Ex Output:
Who set the standards for ISO 3166-2:CF?