Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Lucifer how many episodes are in season 3?
Solution: How many episodes of season 3 of Lucifer were there, including bonus episodes?
Reason: The generated question clarifies the input question by asking about bonus episodes because if the question is about regular episodes only then the answer will be different than including the bonus episodes.

Now, solve this instance: What is the largest denomination of us currency?
Student:
What was the largest denomination of US currency in the form of a gold certificate?