TASK DEFINITION: In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to write a question that clarifies the given question in such a way that the generated question has one unique answer.
PROBLEM: What type of radiation is used in x rays?

SOLUTION: What general type of radiation is used in x rays?

PROBLEM: Who is the captain of hockey in india?

SOLUTION: Who is the captain of India's hockey team as of 2017?

PROBLEM: What us state has the highest population density?

SOLUTION:
What us state has the highest population density, in 2015?