TASK DEFINITION: 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.
PROBLEM: When was the first nuclear power plant built in canada?

SOLUTION: When did the first nuclear power plant start up in Canada? 
 July 22, 1947

PROBLEM: Where did the house of windsor come from?

SOLUTION: What line of paternal descent did the house of windsor come from? 
 German paternal descent

PROBLEM: What is the biggest nfl football stadium in the us?

SOLUTION:
What is the biggest official nfl football stadium in the us in terms of highest capacity? 
 AT&T Stadium