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 Q]: When were nutrition labels introduced in the us?
[EX A]: When were nutrition labels mandated for most food products in the US?

[EX Q]: Who is the president of south africa now?
[EX A]: Who is the president of south africa who first took office in 2009?

[EX Q]: When did the state of the union address start?
[EX A]:
When did the annual state of the union address start?