Classify the input text into either disfluent questions or proper questions. 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.

When did Vienna, make that Prussia, become the center of the Congress Poland?
disfluent

What was the basis mentioned for the development of the principle of inertia, scratch that, for the development of the general theory of relativity?
disfluent

When did income inequality what sector are jobs beginning to decrease?

disfluent