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.

What are the most popular sports in usa?
What is the most popular sport in the USA to participate in? 
 Exercise walking

Where does the savannah river begin and end?
Where does the savannah river begin? 
 confluence of the Tugaloo River and the Seneca River

Who sang the best day of my life?

Who sang the 2013 version of Best Day of My Life? 
 American Authors