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 Input:
When did sound become a regular part of the motion picture viewing experience?

Ex Output:
When did sound become introduced as part of the motion picture viewing experience?


Ex Input:
Name of submarine in voyage to the bottom of the sea?

Ex Output:
Name of submarine in voyage to the bottom of the sea TV series?


Ex Input:
When did japan give cherry trees to washington dc?

Ex Output:

When did Japan announce their intent to give cherry trees to Washington DC?