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.

Q: What type of radiation is used in x rays?

A: What general type of radiation is used in x rays?
****
Q: Why do they use john doe and jane doe?

A: Why do they use John Doe and Jane Doe instead of the person's real name?
****
Q: When did china become a member of the united nations?

A:
When did Republic of China become a member of the united nations?
****