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 can experiments be used to explain beside magma crystallization?

Ex Output:
proper


Ex Input:
What part of a uniform must you wear if you go to public school in Australia?

Ex Output:
proper


Ex Input:
How many medical schools no professors does the Warsaw University of Technology employ?

Ex Output:

disfluent