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.

Example Input: What is the upper most layer of soil?
Example Output: What is the upper most layer of soil called?

Example Input: Who wrote the song man of constant sorrow?
Example Output: Who wrote and first published the song man of constant sorrow with the title "Farewell Song"?

Example Input: What shade of green is the statue of liberty?
Example Output:
What shade of green is the statue of liberty in New York City?