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: Why did Yuan's successors win control of the rest of the Mongol empire, oops Kublai's successor?
Example Output: Why did Kublai's successors win control of the rest of the Mongol empire?

Example Input: X.75 oops I mean X.25 and X.121 allowed what to happen?
Example Output: X.25 and X.121 allowed what to happen?

Example Input: What sea er where do two thirds of the Rhine flow inside of Germany?
Example Output:
Where do two thirds of the Rhine flow inside of Germany?