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.

Example Input: Context : Sonia Mary Brownell (25 August 1918 -- 11 December 1980), better known as Sonia Orwell, was the second and last wife of writer George Orwell, whose real name was Eric Arthur Blair. 
Answer : George Orwell
Example Output: What is Sonia Orwell's spouse's name?

Example Input: Context : Tan Yuling (1920 -- 14 August 1942), born Tatara Yuling, was a concubine of China's last emperor Puyi. 
Answer : Puyi
Example Output: What is Tan Yuling's spouse's name?

Example Input: Context : British Rail 18100 was a prototype main line gas turbine-electric locomotive built for British Railways in 1951 by Metropolitan-Vickers, Manchester. 
Answer : 1951
Example Output:
What year was the service entry date for British Rail 18100?