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:
Who does not have the ability to alter income tax in Scotland?

Ex Output:
proper


Ex Input:
When was Marin's first fort constructed, sorry I meant where?

Ex Output:
disfluent


Ex Input:
What is the name of the shortest suspension bridge in Germany?

Ex Output:

proper