TASK DEFINITION: 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.
PROBLEM: Who sang must be talking to an angel?

SOLUTION: Which duo sang must be talking to an angel? 
 Eurythmics

PROBLEM: Who was the first person to use fossils for dating rock layers?

SOLUTION: Who was the first person to use fossils for dating rock layers theoretically? 
 Nicolaus Stenonius

PROBLEM: Who played edmond dantes in the count of monte cristo?

SOLUTION:
Who played edmond dantes in the count of Monte Cristo (1922 film)? 
 John Cecil Pringle