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 are or no make that how are analog models different than numerical models?

Ex Output:
disfluent


Ex Input:
Who leads The Islamic State?

Ex Output:
proper


Ex Input:
When was Europe fully forested and recovered from the last Ice Age?

Ex Output:

proper


