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]: How was er what took place during the Mexian War?
[EX A]: disfluent

[EX Q]: What did Niels Jerne formulate before the 1950s no Frank Burnet?
[EX A]: disfluent

[EX Q]: What three things are recommended before construction begins?
[EX A]:
proper