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.

Drugs can start or no elicit a neutralizing immune response at what size and larger?
disfluent

What did John Paul II's visits in 1973 and 1989 encourage?
proper

What does  crystals under a microscope I mean the orientation of the thin sections tell geologists?

disfluent