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

What is the hair on a horse called?
What is the hair on the head of a horse called? 
 mane

Who played marilla on anne of green gables?

Who played marilla on the 1919 film anne of green gables? 
 Marcia Harris