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.

[Q]: To what extent did Leibniz I mean Fermat confirm the validity of Euler numbers?
[A]: disfluent


[Q]: Where did British soldiers live?
[A]: proper


[Q]: Who was the Uighur King of Qocho ranked below?
[A]:
proper