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

When is the last time the redskins won a superbowl?
What season is the last time the redskins won a superbowl? 
 1991 season

How many times has the us congress declared war?

How many times did the US Congress declare war, for separate wars? 
 5