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 was the first mobile phone released to the public?
answer:
When did the first customers have access to mobile phones? 
 1946


question:
How many teams in the english premier league?
answer:
How many teams in the english premier league at a single time? 
 20 clubs


question:
Who is mr smith in sarah jane adventures?
answer:

Who is the voice of Mr Smith in Sarah Jane Adventures? 
 Alexander Armstrong