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:
Which were um what were European countries not doing during the 1700's?

Ex Output:
disfluent


Ex Input:
Where did British soldiers live?

Ex Output:
proper


Ex Input:
What is hard to find about the origin of Grand Canyon rock unless analyzed in a lab?

Ex Output:

proper