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.

Example Input: When didn't British begin to build fort under William Trent?
Example Output: proper

Example Input: What are the peptides nope not that but proteins that organisms use to identify molecules associated with pathogens?
Example Output: disfluent

Example Input: In what year did Pierre de Fermat declare Euler's little theorem?
Example Output:
proper