instruction:
In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to provide one question which clarifies the input question and it has one unique answer, and also provide an answer to the generated question. Generated question and answer should be separated with a new line.
question:
When did o canada become canada's national anthem?
answer:
When was o canada first used as canada's national anthem?|When did "O Canada" become Canada's de facto national anthem? 
 1939


question:
Who sang i left my heart in sanfrancisco?
answer:
Who sang i left my heart in san francisco first, but never recorded it? 
 Claramae Turner


question:
Who played gimli in the lord of the rings movies?
answer:

Who played Gimli in the 1978 animated version of The Lord of the Rings? 
 David Buck