TASK DEFINITION: In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to write a question that clarifies the given question in such a way that the generated question has one unique answer.
PROBLEM: Who sang the song cotton fields back home?

SOLUTION: Who sang the song cotton fields back home in 1940?

PROBLEM: Who wrote the song be still and know i am?

SOLUTION: Who wrote the 2007 song based on Psalm 46:10 be still and know that i am?

PROBLEM: What type of metal are guns made of?

SOLUTION:
What type of metal are gun barrels usually made of?