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: When three er uh what must be specified in order to account for their effects on the motion of the head?

A: disfluent
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Q: When did no where did British soldiers live?

A: disfluent
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Q: What is the matrix?

A:
proper
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