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 three things are recommended before construction begins?
Example Output: proper

Example Input: When Iqbal promoted ideas of greater Islamic political unity, what did he discourage ending?
Example Output: proper

Example Input: What mountain range contains Lake Constance?
Example Output:
proper