Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

Example Input: What fields of study were not advanced during the Nestorianism no the Yuan?
Example Output: What fields of study were not advanced during the Yuan?

Example Input: Which were um what were European countries not doing during the 1700's?
Example Output: What were European countries not doing during the 1700's?

Example Input: What topic do private bills typically have or wait tell me what public bills normally refer to in a large-scale?
Example Output:
Public bills normally refer to large-scale what?

