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: Who is the president of south africa now?

SOLUTION: Who is the president of south africa who first took office in 2009?

PROBLEM: Who invented the system of latitudes and longitudes in 2nd century a.d?

SOLUTION: Who invented the system of latitudes and longitudes, measuring latitudes using the island of Rhodes in 2nd century a.d?

PROBLEM: Who was the first person to win a million on who wants to be a millionaire?

SOLUTION:
Who was the first person to win a million on the American TV show Who Wants to Be a Millionaire?