instruction:
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.
question:
Context : The 1982 El Salvador earthquake occurred on 19 June 1982 at 00:21 local time (06:21 UTC). 
Answer : 19 June 1982
answer:
When did 1982 El Salvador earthquake occurr?


question:
Context : John Bardeen (May 23, 1908 -- January 30, 1991) was an American physicist and electrical engineer, the only person to have won the Nobel Prize in Physics twice: first in 1956 with William Shockley and Walter Brattain for the invention of the transistor; and again in 1972 with Leon N Cooper and John Robert Schrieffer for a fundamental theory of conventional superconductivity known as the BCS theory. 
Answer : Nobel Prize in Physics
answer:
Which award was honoured to John Bardeen?


question:
Context : Mihai Balan is married to Ludmila Balan and has two children: 
Answer : Ludmila Balan
answer:

What is Mihai Balan's spouse's name?