instruction:
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.
question:
What does vaccination not exploit?
answer:
proper


question:
What caused the shortage no drove increased rental prices in East New York?
answer:
disfluent


question:
What are the less complex mechanisms used to do?
answer:

proper