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:
What does  crystals under a microscope I mean the orientation of the thin sections tell geologists?

Ex Output:
disfluent


Ex Input:
What vitamin excuse me What gene is expressed by the B-cell?

Ex Output:
disfluent


Ex Input:
What created or instead Apple Inc created what in 1985?

Ex Output:

disfluent