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 : Mainova AG was formed in 1998 through the merger of Stadtwerke Frankfurt am Main GmbH and Maingas AG. 
Answer : Stadtwerke Frankfurt
answer:
What is Mainova's parent company?


question:
Context : Shanthi Krishna was married to Malayali actor Sreenath in 1984 and later divorced him in 1995. 
Answer : Sreenath
answer:
What is Shanthi Krishna's spouse's name?


question:
Context : ISIRI 7558 is a standard published by the Institute of Standards and Industrial Research of Iran (ISIRI) in 2005 based on Directive 92/61/EEC and Directive 2002/24/EC. 
Answer : Institute of Standards and Industrial Research of Iran
answer:

Who set the standards for ISIRI 7558?