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: Who played the bird lady in mary poppins?
Example Output: Who played the bird lady in the Mary Poppins film?

Example Input: Which tribe has the highest population in nigeria?
Example Output: Which combined tribe has the highest population in nigeria?

Example Input: When does easter fall on april fools day again?
Example Output:
When does Easter fall on April Fool's day for the first time in the 21st century (in the Western Church)?