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.

Who was the vice president in 1962?
proper

To what extent did Leibniz I mean Fermat confirm the validity of Euler numbers?
disfluent

When did the University reach the Sweet Seventeen?

proper

