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 leads The Islamic State?

Ex Output:
proper


Ex Input:
What glass flowers exhibit is included in the Busch-Reisinger Museum?

Ex Output:
proper


Ex Input:
When do um where do most students at the Groton School come from?

Ex Output:

disfluent