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: How do they test for drugs at the olympics?

SOLUTION: How do they test for most drugs at the Olympics?

PROBLEM: Who used to present the late late show?

SOLUTION:
Who used to present the Late Late Show before James Corden?