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.

Input: Consider Input: Apple Inc created what in 1985?

Output: proper


Input: Consider Input: What is the system of many biological structures and processes that protect an organism from cold?

Output: proper


Input: Consider Input: In what treatment um, actually, what are associated with the transfer of cold?


Output: disfluent