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.

How many copies did back in black sell?
About how many copies did back in black sell worldwide? 
 50 million copies

Who played roy disney in walt before mickey?
Who played old roy disney in walt before mickey? 
 Jonathan Joseph Heder

What is a group of australian magpies called?

What is a group of Australian magpies sometimes called? 
 flock and tiding