instruction:
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.
question:
When did sound become a regular part of the motion picture viewing experience?
answer:
When did sound become introduced as part of the motion picture viewing experience?


question:
When did us get involved in vietnam war?
answer:
When did us get involved in vietnam war by sending supplies?


question:
Who plays max on one day at a time?
answer:

Who plays max on the 1975 TV series one day at a time?