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.
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Question: What is taking evidence from witnesses an example of, according to the committees?

Answer: disfluent


Question: What do most online pharmacies do?

Answer: proper


Question: To what extent did Leibniz I mean Fermat confirm the validity of Euler numbers?

Answer:
disfluent