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.

Ex Input:
When did the ussr agree to a unified germany inside of nato?

Ex Output:
When did Gorbachev express agreement with a unified Germany inside of NATO?


Ex Input:
What is the attendance of the indianapolis 500?

Ex Output:
What is the attendance of the original indianapolis 500?


Ex Input:
Who developed an explanation for the photoelectric effect?

Ex Output:

Who discovered and developed an explanation for the photoelectric effect in 1887?