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 Q]: What is volume normally as concentrated as?
[EX A]: proper

[EX Q]: What were the operating expenses of the Groton School in 2012?
[EX A]: proper

[EX Q]: What is the name of the trial or uh process which confirms the primality of a number n?
[EX A]:
disfluent