Detailed Instructions: 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.
Problem:Context : Columbus Nova is the U.S.-based affiliate of the Renova Group of companies, one of the largest Russian strategic investors in the metallurgical, oil, machine engineering, mining, chemical, construction, housing, utilities and financial sectors.
Answer : Renova Group
Solution:
What company is Columbus Nova part of?