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]: When did the draft start for vietnam war?
[A]: When did the first lottery for the draft start for the vietnam war?


[Q]: When did sound become a regular part of the motion picture viewing experience?
[A]: When did sound become introduced as part of the motion picture viewing experience?


[Q]: Where was the film high plains drifter filmed?
[A]:
Where was the film high plains drifter principally filmed?