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.

[EX Q]: Who had mathmatical insite?
[EX A]: proper

[EX Q]: What is not a symptom of type I hypersensitivity?
[EX A]: proper

[EX Q]: Where does Lake Constance, oh no I mean, the Delta in the Netherlands begin?
[EX A]:
disfluent