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.

Example Input: Where does the savannah river begin and end?
Example Output: Where does the savannah river begin? 
 confluence of the Tugaloo River and the Seneca River

Example Input: Sharks rays and skates belong to what group?
Example Output: Sharks rays and skates belong to what class? 
 Chondrichthyes

Example Input: What gland is also known as the mixed gland?
Example Output:
What glands that produce saliva are also known as mixed glands? 
 salivary glands