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 office was held by George W. Bush?
[EX A]: proper

[EX Q]: What opportunity did Barack Obama support for Swedish children?
[EX A]: proper

[EX Q]: When using a deterministic no a probabilistic algorithm, how is the probability that the number is composite expressed mathematically?
[EX A]:
disfluent