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: What did Niels Jerne formulate before the 1950s no Frank Burnet?

A: disfluent
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Q: What is the name of the person who created the first aviation community no sorry just the name of the first built community?

A: disfluent
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Q: What does the address information negotiate?

A:
proper
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