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 : ISIRI 13139 is a standard published by the Institute of Standards and Industrial Research of Iran (ISIRI) in 2011 based on Directive 2009/61/EC. 
Answer : Institute of Standards and Industrial Research of Iran
answer:
Who set the standards for ISIRI 13139?


question:
Context : Elena Gabriela Ruse (born 6 November 1997 in Bucharest) is a Romanian tennis player. 
Answer : Bucharest
answer:
What city is Elena Gabriela Ruse associated with?


question:
Context : The 2012 Kenya Police helicopter crash was an accident involving a Kenya Police helicopter on 10 June 2012. 
Answer : 10 June 2012
answer:

The date of 2012 Kenya Police helicopter crash was what?