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 was the return of the native written?
answer:
When was the return of the native started to be written?


question:
Who sings in spite of ourselves with john prine?
answer:
Who sings on the album spite of ourselves with john prine?


question:
Whats it called when fresh and saltwater meet?
answer:

Whats the water called when fresh and saltwater meet and mix?