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 Input:
how does or I mean what network type does X.25 use?

Ex Output:
disfluent

Ex Input:
How often does the City Council divide itself no are elections for the mayor held?

Ex Output:
disfluent

Ex Input:
No imperialism was carried out using which method of transport?

Ex Output:
proper