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.

scientists found their Y. pestis sample where?
disfluent

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

What impacts or like what is income inequality attributed to?

disfluent