Definition: 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.
Input: When was the settlement which would become Warsaw established no not that but when was the Masovian Duchy reincorporated into the Polish Crown?

When was the Masovian Duchy reincorporated into the Polish Crown?