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: What 2011 report was requested by the IPCC?
Example Output: proper

Example Input: Why are coastal species tough?
Example Output: proper

Example Input: Deceleration can be described through what?
Example Output:
proper