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:
Stage 2 of the bill is where who is in charge of the bill?

Ex Output:
proper


Ex Input:
What is the major river no tributary of the Rhine?

Ex Output:
disfluent


Ex Input:
What does the largest no um the smallest and northern main branch begins as?

Ex Output:

disfluent