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: Who was the vice president in 1962?
Example Output: proper

Example Input: What wasn't the purpose of William Pitt's no the Loudoun's troops at Fort Henry?
Example Output: disfluent

Example Input: What do contractors verify and have existing utility lines marked or better inspect during building construction?
Example Output:
disfluent